Bug in Pvz Replanted: Cloud Cover achievement not working

Hi! I’d like to report a bug in PvZ Replanted.
I’m playing on Steam, and the achievement “Cloud Cover” is not unlocking even after completing all 12 levels in Cloudy Day mode. This bug seems to have appeared after patch 1.5.0. It’s possible the game is counting Cloudy Day Endless as a required stage for the achievement, but I’m not sure. I play the game on Steam, so I'm not sure if this bug is affecting all platforms as well.
Is there any way to get this achievement even with this bug?