Gdevelop bug with pictures?

Hello, i have this problem, so when i try to use photos in gdevelop 5 it shows pictures like white background (you can see it on the first picture).
And the thumbnails for the files are not showing also in file explorer of the windows. Can you help me??

For the first screenshot, it looks like your image is corrupted or missing. You should remove it and add it again (and outside of GDevelop, don’t move it).

For your second screenshot, this is a Windows explorer setting, unrelated to GDevelop.
Go to the View tab and choose “Large icons”.
If they still don’t show, maybe they are corrupted too? Check that you can open them in Paint.