Bedlam Raider Veteran attack unable to escape/always fatal

I have encountered this as well, and found an unintended way to escape it after button mashing my entire keyboard.

You will need to switch your stance and press dodge at the same time

For some reason, switching stance gives you a few frames of control, during which you can heal with BD-1 or escape the pin by dodging. Hope this helps until the glitch is fixed.