Disassembly window does not appear

I am trying to debug an ASSERT failure with a checked kernel and HAL.

The command windows shows the location where the ASSERT failed but I can’t disassemble the routine to understand what check actually failed.

All the other window options are working just fine.

I disconnected from the target system and returned to my office.

At that point I noticed a very small disassembly window was visible toward the bottom of my screen. I don’t think it was there previously.