Here's a weird one, current to version 7.
tl;dr: In a double battle (alongside a registered partner) the enemy became frozen, and my partner ALSO stopped taking turns.
Exact conditions:
Player's Pokemon was Finneon (Swift Swim ability, and Rain Dance attack was in effect). Partner Pokemon was Lotad (unsure of the ability), and was the second Pokemon in his party.
Opponents' Pokemon were Magby (fainted) and Elekid, frozen from Lotad's (Nature Power) Tri-Attack.
After Elekid was Frozen, Lotad stopped taking any turns either despite being in good condition. No "___ is frozen solid!" messages were displayed for either Elekid or Lotad. It just kept giving Finneon turns, and eventually Rain wore out.
Minor oddity, but still a bug, methinks.
--------------------------------
EDIT: Got the poison/running error again.
Tonight's log:
---------------------------
Pokemon Reborn
---------------------------
Exception: NoMethodError
Message: undefined method `hp' for 0:Fixnum
PokemonField:1104
PokemonField:1091:in `each'
PokemonField:1091
PokemonField:1086:in `call'
PBEvent:54:in `trigger'
PBEvent:49:in `each'
PBEvent:49:in `trigger'
PokemonField:1253:in `pbOnStepTaken'
Game_Player_:446:in `update_old'
Walk_Run:71:in `update'
I failed to get the screenshot, derp, but here's my team at last save (only difference at crash was probably +1 level on Woobat/Poochyena)
Team:
Poochyena- Level 13 (Tackle/Howl/Sand Attack/Bite) <- This is what was poisoned, by a Wild Trubbish (Poison Gas attack)
Woobat- Level 15 (Confusion/Heart Stamp/Gust/Assurance)
Finneon- Level 15 (Pound/Water Gun/Rain Dance/Attract)
Bayleef- Level 18 (Razor Leaf/Tackle/Synthesis/PoisonPowder)
Grimer- Level 15 (Pound/Disable/Mud Slap/Poison Gas)
Was running on the same autotile as usual... In a fairly laggy map (I say lag, because I'm on a netbook- Most maps run fine, but if there are lots of water tiles/events or if it's near a connection, it'll lag. In this case, all three of those conditions were true.) I wasn't quite to the connection yet though.
...That's all I can think to say as far as details... I had been playing a while. Maybe that makes a difference...