After some testing:
Saved games actually work!
It’s starting a new game (single player - custom game or campaign) that sends me to the windows store…
OK, got everything working again:
After a patch (like 5147) the antivirus exception/whitelisting is pointing to the old .exe ( so this rule is no longer valid)
1 remove the old rule from your AV
2 assign the exception in your AV to the .exe again
path: C:\Program Files\WindowsApps\Microsoft.MSDallas_1.3.5147.2_x64__8wekyb3d8bbwe\AoEDE.exe
Everything works again ( well, for me …)
------from the support page:
Check your antivirus settings.
Some antivirus programs may prevent the game from launching. Check your antivirus settings to make sure Age of Empires: Definitive Edition is not being blocked.
Add the game to any whitelist feature in your antivirus program.
Here are a few particular antivirus programs with known conflicts, and resolution steps for each:
Avast: Age of Empires DE must be added to the programâ€™s whitelist.
Comodo: disable shellcode injection detection.
F-secure: Age of Empires DE must be added to the programâ€™s whitelist.
Trend Micro: follow the steps listed here.