So after finding an issue, why can you not go to single player and re-create it? The A/C does not change between MP and SP. Nobody else has that problem of recreating any issue they find anywhere. This only seems to a be a problem with you where you do not want to go back and look for the problem.
Us not using external sources other than the ones we trust is for security reasons and is a policy of ours.
Perhaps if you cannot do do or choose not to, save each flight as a video and then cut to the issues you have then upload it that way.