bug? mintty with bash: tab key after semicolon char will hang

[Cyanryaku Ailet]

Hi there

I am using Win 11, last week I installed freshly Cygwin with most recent packages.

I setup a taskbar shortcut to run mintty and it will use bash.

I typed a semicolon char and then pressed TAB key, then mintty hangs. It can’t be closed even by Windows close button. 

the only way is using task manager to terminate it.

is this a known issue?

Thanks

Cyanr