Forge 1.20.1-9.1.26

The problem with the interaction of travelersBackpacks and the AngelChestFree plugin: TB will not spawn after the player's death, regardless of the backpackDeathPlace and backpackForceDeathPlace settings. There are no errors in the logs, there is not even an entry about the creation of a Backpack Id (the file is also missing).

At the same time, for example, everything works as expected with the Dead Chest plugin.
IDC, this is most likely an AngelsChest issue, but what if you can add integration between your mod and AngelsChest gravestones?

I'm using the best way to add backpack to loot when player dies - by Forge event and its done here: https://github.com/Tiviacz1337/Travelers-Backpack/blob/1.20.1/src/main/java/com/tiviacz/travelersbackpack/handlers/NeoForgeEventHandler.java#L328-L364
I do not support plugins and I see that this plugin uses custom code to retrieve only the player's inventory. You can report it to their devs althrough I'm not sure the compat is possible here