Hi,
I just upgraded to 1803 using 2.9e miner version. The miner now gets stuck at:
https://ibb.co/c2oG67It stays there for at least 1,5 hours till now.
Looking forward to your help!
Why you are waitng so long?

You can close miner window - you willn't see anything new for the next few years...
Better close this window, and than update your video driver to last version with support 1803.
I had no idea how to fix it. I use 5 RX580 with Blockchain driver.
But I now rolled back to 1709 and it works fine again. Will be waiting for another month before upgrading again. Hopefully, there will be a driver/miner update to fix it in the meantime.