Window size change causes unclickable images.

[kimmustcode]

When I make my window smaller, it causes a number of images from the bottom to not be clickable.

[CyanVoxel]

I've experienced this on occasion as well, but have never been able to reliably reproduce it.

[PeterBouSaada]

Does this happen when you resize horizontally, vertically, or both?

[CyanVoxel]

I'm relaying a report of this happening to someone when they resized the preview panel, at least confirming that this is an issue with the grid panel itself and not the window as a whole

[CyanVoxel]

I've now been able to consistently replicate this issue by creating a library with exactly 312 items on screen and adjusting the grid view so that it's either 5 or 6 columns wide. In both cases the last 44 items are unselectable.

[CyanVoxel]

I've found the issue. The invisible ItemThumb objects that get hidden from view when viewing a page with less than the maximum number of items would, under very specific circumstances, sometimes cover and block the mouse input of other ItemThumbs. I'm submitting a PR with a fix now.