After complete re-install of our DCS on the server, I also added this:
DCS_updater.exe install WWII-ARMOUR
The WWII assetpack, as I saw this in the logfiles:
2024-06-06 11:02:57.774 ERROR woCar (Main): Unit CCKW_353 is unknown , replaced with Leopard-2
2024-06-06 11:02:57.784 ERROR woCar (Main): Unit Willys_MB is unknown , replaced with Leopard-2
2024-06-06 11:02:57.800 ERROR woCar (Main): Unit Daimler_AC is unknown , replaced with Leopard-2
It's just a wild guess though...