#7 - March 2, 2018, 11:11 a.m.
Desufire - Thanks for the follow up that sounds like you cleared the Battle.net cache files and forced the game to repair which is spot on! Though not related to the icuin57.dll issue.
For everyone else I posted about this issue
Here linking to our community response thread so you can keep upto date and I listed our current workarounds. Feel free to continue any responses in that thread.