diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 6fdf7ff..4c548cb 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,35 +4,7 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="196dcffd-0f23-47ff-b3a3-a42caa4edc93" name="更改" comment="feature: 为数字、字母、符号、弹跳垫、两种蜂巢添加配方">
-      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/A.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/B.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/C.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/D.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/E.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/F.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/G.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/H.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/I.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/J.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/K.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/L.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/M.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/N.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/O.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/P.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/Q.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/R.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/S.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/T.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/U.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/V.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/W.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/X.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/Y.json" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/box3formula/data/box3/recipe/Z.json" beforeDir="false" />
-    </list>
+    <list default="true" id="196dcffd-0f23-47ff-b3a3-a42caa4edc93" name="更改" comment="fix: 修复了字母方块无掉落物的bug" />
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
     <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
@@ -40,6 +12,7 @@
   </component>
   <component name="Git.Settings">
     <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
+    <option name="RESET_MODE" value="HARD" />
   </component>
   <component name="GitHubPullRequestSearchHistory">{
   &quot;lastFilter&quot;: {
@@ -117,13 +90,22 @@
       <option name="project" value="LOCAL" />
       <updated>1771846151517</updated>
     </task>
-    <option name="localTasksCounter" value="4" />
+    <task id="LOCAL-00004" summary="fix: 修复了字母方块无掉落物的bug">
+      <option name="closed" value="true" />
+      <created>1771909387662</created>
+      <option name="number" value="00004" />
+      <option name="presentableId" value="LOCAL-00004" />
+      <option name="project" value="LOCAL" />
+      <updated>1771909387662</updated>
+    </task>
+    <option name="localTasksCounter" value="5" />
     <servers />
   </component>
   <component name="VcsManagerConfiguration">
     <MESSAGE value="Merge pull request #7 from box3lab/dev&#10;&#10;chore(workflow): 更新GitHub Actions上传工件动作到v4版本" />
     <MESSAGE value="feature: adding loot tables for all blocks, exactly the same as &quot;grass.json&quot;" />
     <MESSAGE value="feature: 为数字、字母、符号、弹跳垫、两种蜂巢添加配方" />
-    <option name="LAST_COMMIT_MESSAGE" value="feature: 为数字、字母、符号、弹跳垫、两种蜂巢添加配方" />
+    <MESSAGE value="fix: 修复了字母方块无掉落物的bug" />
+    <option name="LAST_COMMIT_MESSAGE" value="fix: 修复了字母方块无掉落物的bug" />
   </component>
 </project>
\ No newline at end of file
diff --git a/box3formula/data/box3/loot_table/blocks/A.json b/box3formula/data/box3/loot_table/blocks/a.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/A.json
rename to box3formula/data/box3/loot_table/blocks/a.json
diff --git a/box3formula/data/box3/loot_table/blocks/B.json b/box3formula/data/box3/loot_table/blocks/b.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/B.json
rename to box3formula/data/box3/loot_table/blocks/b.json
diff --git a/box3formula/data/box3/loot_table/blocks/C.json b/box3formula/data/box3/loot_table/blocks/c.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/C.json
rename to box3formula/data/box3/loot_table/blocks/c.json
diff --git a/box3formula/data/box3/loot_table/blocks/D.json b/box3formula/data/box3/loot_table/blocks/d.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/D.json
rename to box3formula/data/box3/loot_table/blocks/d.json
diff --git a/box3formula/data/box3/loot_table/blocks/E.json b/box3formula/data/box3/loot_table/blocks/e.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/E.json
rename to box3formula/data/box3/loot_table/blocks/e.json
diff --git a/box3formula/data/box3/loot_table/blocks/F.json b/box3formula/data/box3/loot_table/blocks/f.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/F.json
rename to box3formula/data/box3/loot_table/blocks/f.json
diff --git a/box3formula/data/box3/loot_table/blocks/G.json b/box3formula/data/box3/loot_table/blocks/g.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/G.json
rename to box3formula/data/box3/loot_table/blocks/g.json
diff --git a/box3formula/data/box3/loot_table/blocks/H.json b/box3formula/data/box3/loot_table/blocks/h.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/H.json
rename to box3formula/data/box3/loot_table/blocks/h.json
diff --git a/box3formula/data/box3/loot_table/blocks/I.json b/box3formula/data/box3/loot_table/blocks/i.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/I.json
rename to box3formula/data/box3/loot_table/blocks/i.json
diff --git a/box3formula/data/box3/loot_table/blocks/J.json b/box3formula/data/box3/loot_table/blocks/j.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/J.json
rename to box3formula/data/box3/loot_table/blocks/j.json
diff --git a/box3formula/data/box3/loot_table/blocks/K.json b/box3formula/data/box3/loot_table/blocks/k.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/K.json
rename to box3formula/data/box3/loot_table/blocks/k.json
diff --git a/box3formula/data/box3/loot_table/blocks/L.json b/box3formula/data/box3/loot_table/blocks/l.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/L.json
rename to box3formula/data/box3/loot_table/blocks/l.json
diff --git a/box3formula/data/box3/loot_table/blocks/M.json b/box3formula/data/box3/loot_table/blocks/m.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/M.json
rename to box3formula/data/box3/loot_table/blocks/m.json
diff --git a/box3formula/data/box3/loot_table/blocks/N.json b/box3formula/data/box3/loot_table/blocks/n.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/N.json
rename to box3formula/data/box3/loot_table/blocks/n.json
diff --git a/box3formula/data/box3/loot_table/blocks/O.json b/box3formula/data/box3/loot_table/blocks/o.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/O.json
rename to box3formula/data/box3/loot_table/blocks/o.json
diff --git a/box3formula/data/box3/loot_table/blocks/P.json b/box3formula/data/box3/loot_table/blocks/p.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/P.json
rename to box3formula/data/box3/loot_table/blocks/p.json
diff --git a/box3formula/data/box3/loot_table/blocks/Q.json b/box3formula/data/box3/loot_table/blocks/q.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/Q.json
rename to box3formula/data/box3/loot_table/blocks/q.json
diff --git a/box3formula/data/box3/loot_table/blocks/R.json b/box3formula/data/box3/loot_table/blocks/r.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/R.json
rename to box3formula/data/box3/loot_table/blocks/r.json
diff --git a/box3formula/data/box3/loot_table/blocks/S.json b/box3formula/data/box3/loot_table/blocks/s.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/S.json
rename to box3formula/data/box3/loot_table/blocks/s.json
diff --git a/box3formula/data/box3/loot_table/blocks/T.json b/box3formula/data/box3/loot_table/blocks/t.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/T.json
rename to box3formula/data/box3/loot_table/blocks/t.json
diff --git a/box3formula/data/box3/loot_table/blocks/U.json b/box3formula/data/box3/loot_table/blocks/u.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/U.json
rename to box3formula/data/box3/loot_table/blocks/u.json
diff --git a/box3formula/data/box3/loot_table/blocks/V.json b/box3formula/data/box3/loot_table/blocks/v.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/V.json
rename to box3formula/data/box3/loot_table/blocks/v.json
diff --git a/box3formula/data/box3/loot_table/blocks/W.json b/box3formula/data/box3/loot_table/blocks/w.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/W.json
rename to box3formula/data/box3/loot_table/blocks/w.json
diff --git a/box3formula/data/box3/loot_table/blocks/X.json b/box3formula/data/box3/loot_table/blocks/x.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/X.json
rename to box3formula/data/box3/loot_table/blocks/x.json
diff --git a/box3formula/data/box3/loot_table/blocks/Y.json b/box3formula/data/box3/loot_table/blocks/y.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/Y.json
rename to box3formula/data/box3/loot_table/blocks/y.json
diff --git a/box3formula/data/box3/loot_table/blocks/Z.json b/box3formula/data/box3/loot_table/blocks/z.json
similarity index 100%
rename from box3formula/data/box3/loot_table/blocks/Z.json
rename to box3formula/data/box3/loot_table/blocks/z.json