Upon a start of Anno 1800 the game ends abruptly before even reaching the main menu or the Anno 1800 splash screen. I had tried to solve it for months and in act of clear desperation I even fully reinstalled my OS a month ago and upgraded it fresh to Windows 11. Ale the DirectX issues were gone for 1 month on the new fresh OS installation.... until now. Today yet again Anno 1800 has refused to start. To be honest, this is a bit frustrating after investing so much time & money into Anno 1800 over time.
I'll upload whatever useful diagnostics I can as per DevBlog: From Bug Report to Game Update - Anno Union (anno-union.com): (https://anno-union.com/devblog-from-bug-report-to-game-update/) and How to report a bug in Anno 1800 | Ubisoft Discussion Forums .
Regards
Larret