Corupt image files

I’m new to cryptomator and use it since 2 days. I encrypted 25 gb of data with it and synchronized it with Dropbox. Today I noticed that some image files are corupt and are only displayed in one color or are ok in the upper image area and in the lower area in one color. What can I do?

Well, you can try to switch between the interfaces “Dokany” and “WebDAV” and try if this does help.
With these litte information I’m afraid you won’t get lots of answers.
(Logfile, System, Cryptomator Version, Interface)

My picture vault is actually 41 GB and I do not have problems with it so far.