This bug has been happening for a few months now, it affects every single map with mantling and gets worse with latency.
As an example I am linking a Tournament held yesterday by Nick Eh 30, where they played Only Up: Live Events, a map that supports 32 players and is highly dependent on Mantling.
I timestamped it to show where the bug is more prominent.
It makes the game unplayable. Falling because of a bug that’s out of our control is terrible.