MP v0.30 Win: Thumbs do not display until resized

[JohnFredC]

Here is a screenshot showing MP 0.30 after opening:

No. 1:



Notice most thumbs images are missing.

Selecting View->Rebuild Thumbnails corrects the problem for this session:

No. 2:


BUT!!!!

If I close MP at this point, then reopen it, MP again displays screen shown in No. 1.

{Edit}

To reproduce:

• 0. Delete MP's XnView.db
  1. Open MP 0.3
  2. Navigate to an image folder
  3. Observe (or force) creation of thumb images
  4. Close MP 0.3
  5. Reopen MP 0.3
  6. Observe that thumb images are missing
  7. Press Refresh thumbs or change thumb size
  8. Observe MP recreating thumb images
  9. Close MP 0.3
  10. Reopen MP 0.3
  11. Observe missing thumb images (again)

[xnview]

I can't reproduce!

Option/Cache DB > 'Maximum size' is checked?
Option/Thumbnail> 'Create thumbnails for whole folder' is checked?

[JohnFredC]

Option/Cache DB > 'Maximum size' is checked?
Option/Thumbnail> 'Create thumbnails for whole folder' is checked?

Yes and yes.

Here are my cache settings.



Note that the currently browsed folder is in the cache.

I have tried deleting the cache. Same behavior.

Rebuilding the thumbs displays the correct images, but if I exit MP and then reopen it, the thumbs are missing/corrupted again.