In my personal experience, and in accordance with others on the Age of Empires Discord, the HRE IV Landmark Swabia may cause the game to crash.
'> In age III sufficient resources are gathered.
'> One or more villagers are selected
'> The landmark options are opened (Swabia OR Elzbach)
'> Select Swabia
'> EXPECTED EFFECT: receive an outlining of swabia at the cursor to place on the map
'> ACTUAL EFFECT: game freezes for about 5 seconds then pop out of existance. Returned at desktop like I never booted the game.
There is a DATACRC000 file generated at the LogFiles which I’ve included here
C:\Users\KiezelSteentjeh\Documents\My Games\Age of Empires IV\LogFiles
DataCRC000.txt (473.3 KB)
I could not find a way to replicate this bug. It appears inconsistent to me as an individual but also to players as a group. The game only crashes for the HRE player attemping to produce Swabia, allies and enemies alike remain in the game.