Chain locks up

[milakovsky]

I have a Husqvarna 359. The chain got pinched as I was undercutting a log and came off. I reset it on the bar, but every time I put the plate back on the chain gets immobile. I take off the plate and the chain moves on the bar, but when I put it back on the chain locks up. The brake is off. Anybideas what might make it do that?

 

[Bob Hedgecutter]

Photos of the chain be good, and the bar and the drive sprocket under the clutch.

Guessing the "plate" is the clutch cover?
If the chain derailed- could well have damaged something and once the bar studs are tightened it is binding the chain with the damaged area.
The sheet metal plate that goes around the oil pump and covers the bar pad is a likely spot.