hello Julia,
thanks for posting questions here.
Regarding to the error “Access denied” with Error Code: 3221225506, it is possible that path is restricted and AMP did have the permission to get access there. It could also be caused by a race condition with a co-existing AV or security product that quarantines the file before AMP could do so, or a system process kept it open and removed the file before releasing the handle on the file so we could grab it like tmp files created by browsers.
hope this explains clearly to you and have a good day!