[USB] Failed resets and disconnect of hidden tab confusion

[microbit-matt-hillsdon]

From an issue @microbit-caroline had in micro:bit CreateAI.

Due to an unrelated issue (slow app UI progress updates) the full flash was extremely slow and was interrupted (probably by unplugging the device).

index-Dh_fYeqx.js:21065 Detected board ID 9906
index-Dh_fYeqx.js:21065 Object
index-Dh_fYeqx.js:21065 Object
index-Dh_fYeqx.js:21065 USB connection status CONNECTED
index-Dh_fYeqx.js:21065 Stopping serial before flash
index-Dh_fYeqx.js:21065 Reconnecting before flash
index-Dh_fYeqx.js:21065 Object
index-Dh_fYeqx.js:21065 Detected board ID 9906
index-Dh_fYeqx.js:21065 Object
index-Dh_fYeqx.js:21065 Object
index-Dh_fYeqx.js:21065 USB connection status CONNECTED
index-Dh_fYeqx.js:21065 Begin reset
index-Dh_fYeqx.js:21065 Resetting micro:bit timed out
index-Dh_fYeqx.js:21065 Partial flashing failed. Attempting full flash
index-Dh_fYeqx.js:21065 Object
index-Dh_fYeqx.js:21065 Full flash
index-Dh_fYeqx.js:21065 Retrying reset
index-Dh_fYeqx.js:21065 Scheduling disconnect of hidden tab for after flash
index-Dh_fYeqx.js:21065 Scheduling disconnect of hidden tab for after flash
index-Dh_fYeqx.js:21065 Scheduling disconnect of hidden tab for after flash
index-Dh_fYeqx.js:21065 Scheduling disconnect of hidden tab for after flash
index-Dh_fYeqx.js:21065 Scheduling disconnect of hidden tab for after flash
index-Dh_fYeqx.js:21065 Scheduling disconnect of hidden tab for after flash
index-Dh_fYeqx.js:21065 Scheduling disconnect of hidden tab for after flash
index-Dh_fYeqx.js:21065 Scheduling disconnect of hidden tab for after flash
index-Dh_fYeqx.js:21065 Scheduling disconnect of hidden tab for after flash
index-Dh_fYeqx.js:21065 Scheduling disconnect of hidden tab for after flash
index-Dh_fYeqx.js:21065 Scheduling disconnect of hidden tab for after flash
index-Dh_fYeqx.js:21065 Scheduling disconnect of hidden tab for after flash
index-Dh_fYeqx.js:21065 Scheduling disconnect of hidden tab for after flash
index-Dh_fYeqx.js:21065 Scheduling disconnect of hidden tab for after flash
index-Dh_fYeqx.js:21065 Disconnecting after flash due to tab visibility
index-Dh_fYeqx.js:21065 Error during disconnection:
NetworkError: Failed to execute 'transferOut' on 'USBDevice': A transfer error has occurred.
index-Dh_fYeqx.js:21065 {type: 'WebUSB-error', message: 'error-disconnecting'}
index-Dh_fYeqx.js:21065 USB connection status DISCONNECTED
index-Dh_fYeqx.js:21065 Radio connection status DISCONNECTED
index-Dh_fYeqx.js:21065 Disconnection complete
index-Dh_fYeqx.js:21065 {type: 'WebUSB-info', message: 'disconnected'}
index-Dh_fYeqx.js:21065 An error occurred whilst attempting to use WebUSB.
index-Dh_fYeqx.js:21065 Details of the error can be found below, and may be useful when trying to replicate and debug the error.
index-Dh_fYeqx.js:21065 NetworkError: Failed to execute 'transferOut' on 'USBDevice': A transfer error has occurred.
index-Dh_fYeqx.js:21065 USB connection status DISCONNECTED
index-Dh_fYeqx.js:21065 Radio connection status DISCONNECTED
index-Dh_fYeqx.js:21065 Disconnection complete
index-Dh_fYeqx.js:21065 {type: 'WebUSB-info', message: 'disconnected'}
index-Dh_fYeqx.js:21065 {type: 'WebUSB-error', message: '19/failed-to-execute-transferout-on-usbdevice-a-transfer-error-has-occurred'}
index-Dh_fYeqx.js:21065 Flashing failed: {"code":"reconnect-microbit"}