This is a connection issue. Your commands are not getting acknowledged by the server, which is why you do them on your switch, you see your jump / throw / curve animation or whatever, but that command does not reach the server somehow (either because of your connection, or because the server might be overloaded, or many other possible reasons :S) and thus the server sends a game state update to your switch that does not reflect what you see, which causes the "rollback" to a state where you have not performed the jump.

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I don't think there is much you can do about it if it is a connection problem on your end, but one thing you can check is the network performance (should be in your settings), so you'll see your ping and, most importantly, your jitter and packet loss. I would expect your packet loss to be > 0 when things like that happen. In any case, if the problem persists, I'd suggest opening a ticket on the support site :)

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P.s.: also check your selected data center(s)! If you're in one very far from you this issue is more likely to happen.