Looping preview freezes at frame one

Hello there, 

I created a short frame-by-frame animation which should loop. 
To get a good impression of the animation i need to preview the loop quite often.

If I activate the loop funtionality for my preview inside animate it's not smooth but freezes at the first frame (so it takes a few ms to restart) before the rest of the animation plays. If I export the animation it does work fine but I'd be faster if the playback inside animate could run smoothly.

Does anyone else have a fix for this or experiences the same problems? (Couldn't find anyone else mentioning this here)

Greetings