I've just recently been having a problem where I set my character up, set the first keyframe at 0 but when I try to set other keyframes later on my character makes no movements. (I have all bones keyframed correctly and everything). Some parts make very minor movements but they aren't what I keyframed and they are instant too. Also I don't know if this makes a difference or not but I am using the dopesheet.
I`m unable to show more than 2 pictures so I got rid of the first one. Basically it showed my starting keyframes on frame 0 (I had everything keyframed just like in the second image). The character at frame 0 looks like how he does in the 3rd image.
After I keyframed everything in the previous photo, I moved to a different keyframe and all the parts I moved snapped back to look more like the keyframes in frame 0 instead of what I had in frame 9. I honestly have no idea why this is happening and really need help figuring out why this is happening.