Struggle Crash and Other Bugs

[Titania 5]

I just played a series of online battles with my roomie, and we managed to trigger 4 different errors.  Eek!  If it matters for any of these, my roomie runs Reborn on Windows while I run it on a Mac in Wine.

 

• Game starts, I lead with a scarfed shadow tag Gothitelle, my roomie leads with a Swanna.  I go first tricking him a scarf, he clicked rain dance (har har har).  The next 4 turns are me selecting a move that does nothing (snore) and him of course repeatedly rain dancing, but going first thanks to the choice scarf.  My plan here is to trick him back on turn 7 after he struggles twice, then go first and KO him with psychic after he's taken struggle recoil, the rain has elapsed, and I'm virtually full health.  However, on turn 6 when he would struggle the first time, I pick my move and then see the screencap shown at the end of this post.  On his end, he sees himself struggling as normal, me tricking him back, and then he's stuck at the "waiting for other player" prompt forever since my game has crashed fatally.  I am assuming this is somehow caused by weird circumstances forcing a struggle?
• We re-tried for the sake of science, but this time with me tricking him back prematurely.  The game did not express any error messages, but upon tricking back I found myself locked into trick.  This is incorrect behavior for this move.  Choice items should only lock you into moves that you clicked at start of turn while holding the same instance of the item as you click them.  I am aware this glitch is not online-exclusive.
• Game starts, my opponent leads with a Feraligatr and I with a Chansey.  He uses thrash and I use stealth rock.  The second turn of his thrash lock continues as I toxic him.  No crits or secondary effects of any kind occur during all of this.  At the end of this turn, he sees his thrash lock ending and himself becoming confused.  I do not.  Clearly the battle's already desynced, so I don't know if anything matters from this point forward, but just in case: I swap to Chesnaught.  He tries to thrash again.  On his end, he sees himself getting hit in confusion.  On my end, of course I see the third turn of the trash lock completing.  Then I get the error contained in the second screenshot at the end of this post, though he sees nothing as the battle apparently continues normally.  The next turn I manage to kill him from his viewpoint while not killing him from mine, and from there all hell breaks loose as everything is just desynced to the point of absurdity forevermore.  The irony was strong with this one...  we played the battle on glitch field, and wow did it deliver on the name 
• Whenever my roomie used substitute, I couldn't see it.  I get all the text prompts and everything is handled correctly from a mechanical standpoint; it's just a graphical glitch.  The user of substitute still sees the right battler sprite.

 

Screencap of the error message in glitch 1:

 

Screencap of the error message in glitch 3: