Animation frames being invisible ingame and on the timeline

Hey,

Working on my first game, I have a 2d scene setup with a Player sprite that has several animations trigger by a state machine.

The problem is, some of the frames are gone missing. Example:

All the sprite settings are the same on all of the animations:

The animations have 12 samles, and the original images are 64 x 64px. Some images show up on the timeline but not on playback.

I tried messing with the settings with no avail. The odd thing is, when messing with the settings, I got the idle animation to work properly, as well as the walk up animation.

The strange thing is that all the animations share the same settings. Any idea’s?

Anyone experiencing something similar?