Xnview Classic 2.51.1 crashes after clicking "Up one level" or key Backspace

[srabe]

Hi everybody,

i was trying to find something, about what is happening to my Xnview recently.
After maximal 3xtimes I stroke key Backspace( or I click on icon "up one level") in thumbnails view, whole Xnview crashes. In these folders are strictly JPG.
Sometimes it happens after first times clicking on icon or stroking backspace key. Sometimes after 3.

I tried another folder with different images, still the same.

I am using:
W10 64 last update
Xnview Classic 2.51.1

[xnview]

only jpg, and in subfolders same?

[srabe]

only jpg, and in subfolders same?

Yes, there are only JPG, but converted from RAW Nikons .NEF, so they are about 10-20 Mb each. When I switch to folder with small size images crashes doesn't happen.
I have 32 GB of memory.

I tried turn on setting "Ignore errors" for now it doesnt crash.