This has NOTHING TO DO WITH THE GARAGE. The Garage works fine. I've seen a lot of threads start this way, and then someone jumps in with their garage not working, and that becomes the topic.
I've seen a number of threads start that WOT hangs when trying to enter battle before the thread gets hijacked. About 90% of the way through the loading screen it just freezes (although the music keeps playing).
It never did this prior to 9.15.
I am running macbook pro, retina, mid 2012, 8GB 1600MHz DDR3, GeForce GT 650M 1024 MB
OS X El Capitan, v 10.11.4
I used to be able to run intermittantly, but then WOT page faulted and it's never worked since.
Good luck on the bug hunt!
(It's definitely a bug, anyone who calls it a glitch doesn't know what they're talking about)