Exactly what it says on the tin. I’m trying to do a short animation showing a transition between two shape keys (opening a door on a ‘hull’) and its NOT BLOODY WORKING.
I can get the model to show one shape key or the other, but it flat out refuses to animate between the two positions.
Did you tweak the sliders in the dopesheet ?
… never used the Dopesheet before. roit, off to the manual to read and experiment then.
ETA
Okay, Dopesheet showed me what the problem was all right. I had a data channel for the shape key, but no value data in it. Using that slider entered the data I thought would be entered by adjusting the shape key values and adding keyframe from the properties panel.