"I'm posting here to see if this is an already acknowledged problem."

There have been issues and complaints about Tascam drivers since I learned how to say 'ouch'.

It doesn't matter that it worked with this gadget or that one. That it worked flawlessly with your last OS or even worked this morning. Tascam drivers have a mind of its own.

Their old 8 channel USB interface comes to mind immediately. Some had issues and some never did and some developed issues somewhere along the way.

Not knocking Tascam - in fact, I love Tascam equipment. Owned a ton of it. Never had a piece of hardware quit on me.

My recording set up is based around a Tascam DP24. It is very easy and efficient to transfer BIAB/RB files back and forth between my Tascam DP-24 and my computer.

There are many benefits and options owning a Tascam DP-24/32 to work in conjunction with a DAW and BIAB.

But back to your set up and situation, look at Tascam drivers first

BIAB 2025:RB 2025, Latest builds: Dell Optiplex 7040 Desktop; Windows-10-64 bit, Intel Core i7-6700 3.4GHz CPU and 16 GB Ram Memory.