Flying A321

Does anyone else experience when flying the A321 that when you reaching cruising altitude whatever that may be, the plane keeps trying to over correct altitude so It is constantly bobbing up and down and really drastically. I’m not sure what’s It is. I thought weight then I thought weather but I’ve tried multiple different ways and It is still happening.

It is a known issue.

I will most likely be getting fix in the 18.1 update, coming with a few days.