When u say...the rain stops between frame jumps--do u mean-- going to another frame...or do u mean it jumps and comes back...
I just want to clarify..
To be honest it wouldn't be the first time i play game..even the best of games like Ravenhurst..and the video stop looping/playing..when i leave a scene..to be honest..i see it alot..
What u can do as well..;
Have the video play..but stop..while the player is still there..so the rain stops..clears up..whichever..The cursor is rendered useless till then..Then load a new frame..and then have it so the player leaves the scene..or stays.
I'm not sure what you're doing..just some ideas..Would an animation work better..?
I don't use videos..i use plugins..and animations..