Window scales too small for tiny image + inconsistent scaling for larger image in loop

[zEdS15B3GCwq]

System information:

• Windows OS version: Win 10 x64 Pro 1909
• ImageGlass version: 7.6.4.30

To Reproduce

Steps to reproduce the behavior:

1. have 2 images in folder, one very small (10x10 red filled square here, first image), and another larger one (1920x1080 in my case; original not uploaded)
2. set IG scaling/zoom to "scale to fit" and "window fit"
3. cycle between images
4. profit

Actual behavior:

Problem A: the window scales to a too small size for the tiny image - only the IG icon, minimize and close buttons are visible, the toolbar is unusable and the picture itself is hidden.
Problem B: inconsistent scaling - cycle between the images, and the larger image appears once smaller, once in full size. Cycling can be done in any way - loop in one direction, or up/down/up/down.
See uploaded images 2 3 and 4; in case of looping, IG would display them in this order: 2, 3, 2, 4, 2, 3, 2, 4 ...

Expected behavior:

1. I'd expect IG to have a 'minimum' window size when scaling, which is still usable and shows the image.
2. Scaling should be consistent, the large image should appear properly scaled and the same size, always.

Screenshots:

tiny image 10x10

loop order (pressing next image repeatedly)
1 & 3 (red square not even visible)

2 (large image first appears incorrectly scaled, i.e. much smaller)

4 (large image correctly scaled)

Additional context:

Today was rainy?

[fire-eggs]

I've confirmed this issue. Note that the "scale to fit" part doesn't seem to matter, even with "Auto Zoom", I see the described behavior. I.e. this is a problem solely with "Window Fit".

[SylwesterZarebski]

Confirmed with enabled or disabled Auto zoom.

[d2phap]

fixed in v8.2