A user has reported an issue where Possession replication or Character Movement replication, unsure of which, is not working properly for some clients. It seems to work fine for the first client but does not for any past that. It requires the possession change to occur on one of the affected clients to occur.
This occurs in 4.19 and 4.20
Note: when attempting to reproduce this using the project in Main (4.22) this is blocked by a crash occurring, related to an access violation. That callstack can be found in the attached files.
A workaround is to set the cvar net.ShareShadowState to 0, though this will likely negatively impact server performance.
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-66313 in the post.