webp files skipped in Floating PV when using std Nav keys

[sparks]

XY64: 28.00.1200
XY32: 27.20.0703

BASIC (and very minor) PROBLEM:
Lists of files with image files (tested: .jpg .png .gif .webp), ..When a .webp file is displayed using (F11), FPV starts and works as expected.

Then w/NAV keys (UP/DN-Arrw or Spacebar/Cntl-Spacebar) for next image file, if is another .webp file, FPV displays as expected.

If it is ANY OTHER image file ver, it still displays as expected. But AFTER displaying that different image file, NAV keys will then ignore all existing .webp files entirely, simply skipping over them, continuing to work as expected on all other remaining image files. Toggle (F11), or use mouse to select a .webp, and away we start again as above.


BASIC INFO:
- Exists in XY64, and "FRESH" XY64 equally.
---DOES NOT Exist--- in my 'side-by-side' totally separate nearly identical config XY32

- ---BUT---BUT--- DOES Exist in a "FRESH" ver of my XY32 !!!!

- Which of course makes me question my sanity and testing...
- Minor heads-up Don, Stuff it on the bottom of your (I'm sure) Huge List..

[admin]

- Ctrl-Right-click the image in FP: select "Navigate by Category"
- Configuration | Preview | Previewed Formats: ensure that WEBP is ticked under Image Files.