Disappearing Patch

3.8.0 on FullSize4 and Hog4PC in different showfiles.

I am not sure what action is causing this, but I have had the patch disappear from VIEW BY DP and the PATCH@ window.
The patch is still present and working, but the console thinks the patch in empty in either of these views... or when using PATCH @ ENTER.. it tries to patch it at 001 even though the address is being used.

Sadly... when I save the showfile, and re-expand the show.. the issue disappears... so I can't send you a file you could repro from.
I can send you both files saved as the issue has occured if it helps?

Attached is a screen shot from HogPC showing patched fixtures, but an empty Patch@ window