Missing subfolders in tree when navigating using keyboard

[Alexander]

I reproduced that on another PC. I used the latest version (12.30.0200) with default configuration.

Steps to reproduce:
1. Create a test folder with 2000 empty folders in it (though 700 is enough on my PC).
2. Collapse this folder in a tree and remove cursor from it, so that next time XYplorer starts, this folder is collapsed and is not selected.
3. Close XYplorer and run new instance. Do not select or expand the test folder in tree before steps 4 and 5.
4. Position cursor in tree on the node right above the test folder (so, that if you press <down> key now, the test folder will be selected).
5. Press <down> and <right> to select the test folder and expand it. But do it fast, this is important.
That's all. The tree now contains only first N subfolders of the test folder.

[admin]

Bingo! OK, I'll see if I can fix it...

[admin]

Tricky, but I think I got it.