This is a message from Vincenety! He can't access this website so he's asking me to tell you all this!! So listen closely!
I have lost my Tyranitar HP after I was going to heal it! Its HP is now 0/0 so I can't even heal it. This is my second level 100 Pokemon that i have lost!! So reminder to all Pokemon Indigo Trainers the bug that makes your Pokemon's HP to zero is still here!! Be careful! You've been warned!! Thank you for listening!
i have the same problem with my ivysaur, crobat and slugma, and NEARLY my butterfree.
I think i know what happened. When you try to switch pokemon, if the screen freezes when it's loading, and you click away. The pokemon automatically ends up having 60/0 HP. when you go to the pokemon center to heal your pokemon, the pokemon's HP turns to 0/0 HP.
BUT if you battle your pokemon again, before you take it to the pokemon center...it will return to having it's original HP. This is what happened to my butterfree (which is why i said 'nearly')
however...if this still happens...which it probably would. Can someone (Simon??) FIX this problem!!!