some time ago i was playing opener challenge 9 event and i managed to get a good replay, although when i was gonna edit it to make it better i didn't know how to edit it (E doesnt work) and when the replay reaches frame 350 (in the event replay making thing the replay auto plays that same replay once after i click the participate button) the message ''failed to verify replay integrity at frame 650'' appears
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solution
do not leave the event replay making thing
otherwise your replay will prob glitch just like it happened to me
if you do leave the same error can occur and ur gonna have to make a totally new replay

Your replay does look bugged after frame 650 with some desyncing happening, the event has some built-in checks to detect hacked / broken replays so that's likely why it's happening.
To edit your replay, press R after it's finished the initial loading and you'll be able to use E key to enter edit mode.

but can i fix that replay in any way?