Andrew,

BC_WindowBase::init_im: Could not open input method. unjoined tids / owner 1 00000000ea7fc230 / 00000000ec6e9fc0 12BC_Clipboard FORTIFY: pthread_mutex_lock called on a destroyed mutex (0xaf689e0) Aborted $

probably because i failed to switch away from termux window into vnc window? or my vnc client was not working properly (there was aterm, but i was unable to tyoe and see my commands there..)

I do not know if this is applicable to Termux, but when an O/S get "unjoined tids" the following is stated in the manual:

BC_DisplayInfo::init_window: cannot open display "".
BC_DisplayInfo::init_window: cannot connect to X server.
unjoined tids / owner 42

00007feb27fff700 / 00007feb8f496700 9MainError
00007feb267fc700 / 00007feb7affd700 18FFMPEGScanProgress
...

This usually indicates that you are out of Operating System ﬁle descriptors. You
can increase the amount easily with the following command line: ulimit -n
4096 where 4096 is a size suggestion but can be increased.