I can confirm this. It is happening when setting "Object Detail" is "Very low". When I set this setting to "normal" I saw the player fine.
Right now "Object Detail" setting helps a lot with performance so I think they (developers) should make it so it does not affect players, only structures and environment.
Also another issue about this "0003835: Players at Long Ranges only showing Gun and Helmet". Maybe add this as a relationship.
EDIT: I think I see zombies fine at this distance, only players are affected, not sure though.