I couldn't figure out where to report this but same thing...
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Cannot read property 'ui' of undefined

TypeError: Cannot read property 'ui' of undefined
at new hup.ModuleConfig (callofwar.com/clients/ww2-clie…ust=1497456273:105185:473)
at Game.start (callofwar.com/clients/ww2-clie…bust=1497456273:112287:26)
at callofwar.com/clients/ww2-clie…bust=1497456273:112391:10
at Function.req.execCb (callofwar.com/clients/ww2-clie…s?bust=1497456273:1767:25)
at execManager (callofwar.com/clients/ww2-clie…js?bust=1497456273:437:31)
at callofwar.com/clients/ww2-clie…js?bust=1497456273:538:25
at execManager (callofwar.com/clients/ww2-clie…js?bust=1497456273:515:17)
at main (callofwar.com/clients/ww2-clie…js?bust=1497456273:840:17)
at callDefMain (callofwar.com/clients/ww2-clie…js?bust=1497456273:851:18)
at Object.completeLoad (callofwar.com/clients/ww2-clie…s?bust=1497456273:1420:25)

Details:
TypeError: Cannot read property 'ui' of undefined

i have the same problem with my game and it won't let me in to play

Getting the same error, I'm having no problems getting into regular games so this just seems to be affecting frontline games. Hopefully it gets fixed soon.

same problem for me on front line games.

This is known, and will be fixed soon. It only affects beta games of course and we will solve it as soon as possible. Sorry guys

Always makes me laugh when there is a post saying clearly a bug is known and at top of this forum section too and yet new posts are made hours after the known bug status post was posted