I just found a work around, sort of. If you install it on your phone and log into your account there you can complete the colour challenges I believe. (Edit: Unless it was fixed last night and I didn't need to do this)
I just manged to complete White. I've not done the others yet. If you have the spare 2GB on your phone to install it, then its not too annoying to get around the issue on PC. That should then let you do everything on PC
I just found a work around, sort of. If you install it on your phone and log into your account there you can complete the colour challenges I believe. (Edit: Unless it was fixed last night and I didn't need to do this)
I just manged to complete White. I've not done the others yet. If you have the spare 2GB on your phone to install it, then its not too annoying to get around the issue on PC. That should then let you do everything on PC