Animation frames are reverting to previous points in time

Hello,

I've been having a problem with Construct 3 where sometimes when I click on an animation frame when editing it, it removes the changes I made between now and the last time I clicked on it.

Previously I've been able to fix it by making a change and pressing ctrl+z and it would go back to normal, but now even that isn't working. Does anyone know a way to fix this? I literally can't finish any animations because it just keeps on deleting my work.

I've experienced this bug(?) occasionally when using the animations editor for my pixel art. It has only happened a few times to me, but it was enough to make me slightly paranoid about using the animations editor without exiting and opening it again every few minutes to let it save my work.

I've only experienced this with image points. I'd do an apply to all frames which works, but when I switch between the animation frames, it suddenly reverts. It doesn't happen too frequently though, just every once in a while.