after I finished a battle and I leveled to 32, I learned leaf storm to replace knockoff. I had walked out of the long hallway and the game kicked me out. when I logged back in, I had the move knockoff and leaf storm was gone. plus I was back in the tunnel. not sure what happened, but any help would be greatly appreciated. this happened on my victreebel

after I finished a battle and I leveled to 32, I learned leaf storm to replace knockoff. I had walked out of the long hallway and the game kicked me out. when I logged back in, I had the move knockoff and leaf storm was gone. plus I was back in the tunnel. not sure what happened, but any help would be greatly appreciated. this happened on my victreebel

Hi there. You may have been hit by a rollback. You may read more about Rollbacks here. As quoted,

Rollbacks occur whenever the server was unable to successfully save newly gained progress—in which case, the data in the database remains changeless, as that newly gained progress—while temp-held by the server for your log-in session—never registered in the database.

 

This mostly commonly occurs in the wake of a server crash wherein data was gained after Point A (the last saving point), but the server crashed intervened with Point B (a would-be saving point, had the server not crashed before it). Additional but much more uncommon causal scenarios can be when your computer logs you out abruptly, such as during a sudden shut-down; in those cases, progress may also end up unsaved, as it did not give your game client ample time to query the database to save it before your computer force-ended the client.

 

Now, in order to gain Leaf storm once again, you may teach it to your Victreebel through a move relearner in the following areas:

• Kanto - Cerulean City; Saffron City; Tutor Heaven
  
• Johto - Goldenrod City; Blackthorn City
  
• Hoenn - Slateport City marketplace; Sootopolis City
  
• Sinnoh - Snowpoint City and Hearthome City