Even if 'Show Spell Animations' is unticked, it is showing all animations on the actionbuttons. It has begun last week.
When I tick and untick the option, it is working fine until I do a /reload

Addon Version
11.0.5-retail

World of Warcraft Version
Retail

It seems like Masque is causing it somehow.
Will try to check further...

Alright, it seems like Masque has got new settings for animations.
Had to go to /masque -> Advanced and disable all spell animations there.

Screenshot (unfortunately in German language, sorry for that):

/closed