Audio Export: Cannot select audio driver

[pmj_rit]

No doubt this is not random but it appears to be.

I have been trying to do a mix of a project.

I listen back in another application to these. I did this and noticed a slight glitch (not clipping).

I started again: opened the project, went to the advance audio export dialog.  The audio drive was not selected and could not be selected.

I tried the quick method but this does not (as it usually would) open a windows save dialog.

Hope someone has seen this before and has a solution.

Now with a screenshot.  The audio driver has not been unselected by me and I can't select it again.

It started working again and then stopped.

I've had to export stems. Did some then suddenly this problem again. Why?

Edited October 9, 2022 by pmj_rit