Not too sure how else to put this. When you respawn you seem to lag/desync sometimes, this can cause certain actions to just happen, not happen until a little later or some other visual/lag related issue.
So for example when you respawn and try to pull anything out of your inventory it will take a few moments to do the action or sometimes it will just skip the entire animation completely just like you're lagging/experiencing desync.
When I last played (around less than a year ago) this was not an issue. Just throwing this here. I also feel it has nothing to do with server lag/connectivity or stability of either the cli/serv connection or stability.