I was about to beat a Tapu Koko RAID and strangely I get a MEGA Boast ATTACK on ROCK & GROUND. I looked around and there’s no Mega Pokemon. And my Earthquake charged before Rock Wrecker which was odd. I had this exact issue during Raid Hour. If any can report this to Niantic that would be great.
Lest we double-up on info, here’s a thread from TSR about it. Seems like there’s a lotta glitchy business after the last update (glad there’s nothing critical to raid right now).