Thanks for reporting the bug =^) It's now solved internally, it will be available on next public patch ^_^

Hopefully we will be able to work on it this week.

Meanwhile try to verify game cache:

Hello = ) Sorry for the delay,
1) What is the name of your missing map ?

2) Is it visible somewhere in steam/userdata/[user id]/230190/remote ?

Hello = ) Reset-ing your HomeRealm should fix your issue I believe. And finishing C13 could also solve the problem :)

It is fixed internally = ) It will be available on the public build very soon