Currently world of warships is unplayable for me since the game fails to load water textures.
My setup: Macbook pro 13 mid 2014, 8gb ram, intel i5 2,8ghz, Intel Iris Graphics 5100
Yes, not the strongest machine for gaming, but it worked till now on default low settings.
The saddest thing is that i got 24h free premium that now i can not use because of this bug :-/
I'm attaching screenshots.