0. ALWAYS PROVIDE INFORMATION ABOUT MODLOADER (Fabric / Forge) AND MOD VERSION (For Example 1.19.2-8.2.10)
   latest.log
   Fabric 0.15.11
   Game 1.20.1
   Mod fabric-1.20.1-9.1.14
   .txt with all mods attached

1. Describe the bug
   Whenever I die with my backpack in the Trinket back slot, weird things happen to my items. I have not determined a specific pattern, except that items change (they duplicate other items in the backpack), and possibly that items do get deleted as well. (I suspect the latter from a previous play session, as items I crafted mysteriously went missing. I didn't notice until the next day.)

I suspect that there may be some compatibility issues with the Trinkets mod?

2. Write steps to reproduce the bug

• install Trinket
• gamerule: keep items on death
• Equip backpack in back slot provided by Trinkets
• Die
• check inventory
• items changed and perhaps lost
• Happens on every death.

3. What is expected behaviour

• unchanged inventory

4. Attachments
   mods.txt

so im closing the issue

Hmm. Now the backpack just completely deletes itself if I have it in the Trinkets slot, despite using the keepInventoryOnDeath rule.

This should be an issue with Traveler's Backpack's Trinkets integration, I think. Beansbackpack does not have the same issue. It does use a custom gamerule to stay in the dying player's inventory which has to be turned on manually as well, but bean's gamerule does work, unlike your doNotPlaceOnDeath settings.

I just noticed a strange issue:

I had the bottom of the two installed, and its the one with the issues.
When I went looking through mods I might like to add to my pack, I stumbled across this version of Traveler's Backpack and noticed it wasn't installed. (I have since installed it, as you can see, and will see if this version fixes the issue.)

I have no idea how or why this happened. I used modrinth to install Traveler's Backpack a week or two ago. I don't know how or why I got a...corrupted? version of your mod.

I was not able to find a way to solve this issue. The backpacks delete themselves if I put them in the back slot. They don't if I keep the backpack in my hand or in the inventory (even if I keep Trinkets integration enabled).

I've uninstalled the mod for now - it's not quite stable.

9.1.14 was hidden because it caused incompatibility with grave mods and other devs probably wouldnt change their code so I reverted the changes

I'll check the issue

I'll check the issue

If you run into issues, Beans Backpacks might be a good place to look at possible solutions. Those backpacks don't disappear on death if you set the config accordingly.

Okay so I've just checked it by myself - everything works correctly for me. Backpack stays in trinket slot if gamerule keepInventory = true. make sure you have trinketsIntegration enabled in travelersbackpack config

Ah, I got very lucky, the very first mod I tested was Bean's Backpacks, and that created the conflict:

The issue is having Bean's Backpack enabled - and that it has conflicting configs. There's a "keepBackSlot": setting in two of its config files:
(look at the marked lines near the bottom)

If they're not set to the same value, they create an impossible situation.

So it'll be a compatibility issue with one of the mods, then.
I just toggled the mod on again, and the backpacks still delete themselves completely, on death. with the integration turned on. I've tried the place on death option, and the force place one too, but they don't work either - the backpack's still disappearing.

Do you have any particular suggestions on how I could track down this issue?

So for first you can check if it works for you on clean installation with just travelersbackpack installed, then you can add more mods and check when it breaks

I was afraid it'd be that.

Well, an initial test with just your mod, Trinket, EMI, and dependencies, shows success.