Mega Evolutions Reverting

[Jamie Watts]

When I switch out a mega-evolved Pokemon and switch it back in later, it no longer retains its mega-evolved state and I am unable to mega evolve any other Pokemon.

[Wyatt Verchere]

Cannot repro. Are you sure it didn't faint and you revived it? If you did, this is intended behaviour.

[Anders Stensgaard]

I have encountered this problem too. It happens after I baton pass my mega mawile (doing egglocke).