ImHex finds multiple builtin plugins

[Garmelon]

Describe the bug

When launching imhex, the main window is greyed out and can't be interacted with. A second window opens with the following text:

ImHex found and attempted to load multiple built-in plugins!
Make sure you installed ImHex correctly and, if needed,
cleaned up older installations correctly,
There should be exactly one 'builtin.hexplug' file in any one your plugin folders.

A list of paths follows. Only the following two have a checkmark in the "Exists" column, all others have a cross:

• /run/current-system/sw/share/imhex/plugins/builtin.hexplug
• /nix/store/kqwpmv4mlxqvd785g46gnr8zr9c9rb13-imhex-1.19.3/bin/plugins/builtin.hexplug

On stdout, imhex prints [21:31:21] [ERROR] [main] Found more than one built-in plugin!

Steps To Reproduce

0. Use gnome?
1. Install and launch ImHex

Expected behavior

ImHex launches normally and can be interacted with.

Screenshots

Additional context

A few days ago in #184488, it seemed to work for people. The imhex/default.nix file wasn't changed since then.

Notify maintainers

@luis-hebendanz @peterhoeg

Metadata

• system: "x86_64-linux"
• host os: Linux 5.15.74, NixOS, 22.11 (Raccoon), 22.11pre419179.b7d8c687782
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.11.0
• channels(root): "home-manager, nixos"
• channels(joscha): ""
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos

[Garmelon]

Possible workaround:

1. Launch imhex with a non-existing file as argument. The "file could not be opened" error message seems to prevent the built-in plugin error message from showing up.
2. Close the error popup
3. Open files via the UI normally.

If imhex crashes, just retry from step 1. If the UI layout is messed up after step 3, reset it via the "Layout" menu option.

This is the "Loaded Plugins" table when using this workaround:

[Garmelon]

Another note: When running imhex via nix-shell on a system where it is not installed, it seems to find no built-in plugins at all.

[CollinDewey]

I've also had this issue, although something odd that I had occur was ImHex working on one user, but not working on another user.