ah, thanks for the explanation. now I found the setting. its a bit strange that 0 means no limit for local and no thumbnails at all for remote locations. I understand the logic, still it feels very inconsistent.
So I guess ffmpegthumbs broke somehow for me…
UPDATE: so I’ve got an idea, possibly the reason is because I never reboot my laptop but only put it in standby when I don’t use it for a few hours (like when I sleep ^^)
So I probably didn’t reboot after installing that update that changed the thumbnailing in dolphin, so maybe rebooting will help.
21:26:14 up 20 days, 12:09, 12 users, load average: 2,58, 3,02, 3,19