Came across a strange bug today while working with Mega Evolution. When the Pokémon Mega Evolves and changes its innate ability, that part works fine. What gets strange is when it changes back. Functionally, it will have its original ability, but if you check its summary page, it will say it still has the ability of the Mega Evolution. What's really strange about this is that if you view the summary in battle, nothing happens except for an incorrect ability being displayed. But if you check it out of battle, then that seems to change things so that the regular Pokémon's ability actually becomes the Mega Evolved ability instead.
For example:
Gyarados has Intimidate as its innate and Mega Evolves so that its innate becomes Mold Breaker.
In the next battle, before Mega Evolving, Gyarados' Intimidate will activate as normal.
If you check Gyarados' summary during the battle, it will say it has Mold Breaker as an innate, even though it just activated Intimidate.
After the battle, if you check its summary through the pause menu, then it will still say it has Mold Breaker, even though it's not Mega Evolved.
In the next battle after checking the pause menu summary screen, Gyarados will now activate Mold Breaker instead of Intimidate without Mega Evolving.
This change persists for all future battles.
I couldn't find a fix for this one myself.
You know, I actually did encounter that one, but I figured out how to fix it fast, and it was before I had an account on this website, so I never mentioned it. Oops.
