Earlier today I battled Brock, Koichi, Chuck, Erika, Shamac and George. After beating George I went to the pokemon center to prepare for the next boss and then after several minutes the game crashed so I came back online 6 hours later, checked reborn bot and shows me all the bosses I fought can be battled again. Went to check and sure enough Shamac asked me if I wanted to battle.

 

Mind you I finished these bosses within a span of one hour, I haven't ever experienced a rollback go as far back as one hour and would have been mentioned in the announcements on discord if it did.

 

Edit: Brock, the first boss I fought today also can be battled again. Fought and lost. Reborn bot still mentions he is ready.

Edited June 24, 20197 yr by Darksun20

Reborn bot states that Erika is ready but went to check and she is on cooldown.

Some bosses might get their cooldown reset due server updates.

Also, I would recommend to not use Reborn bot for bosses cooldown and keep the track yourself instead since Reborn bot most of the times doesn't show the proper cooldowns.