Feed roller

Hello my fellow quarantinies,

I have a question about my feed roller. Now before I start I don't have any pictures due to not having a phone, so i'll try and explain as best as I can.

When I tried to level up my feed roller to the bell knife and making the gap as symmetrical as possible, it seems 100% fine. So i tighten the adjustment screws in place.

But the strange thing I noticed when my leather was catching on one side so I looked from the side of the skiving machine parallel to the feed roller and pressed on the foot to see what was happening on the feed roller as it was spinning, I noticed that it is uneven? Like half of it will level up perfectly with the bell knife and as it spins it begins to go wonky? for example the left side will dip and the right side and middle will be normal? as so forth?

Is there something going in side with the stuff connecting the feed roller or is my feed roller ruined?

I can't seem to find anything?

I hope this was explained enough