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Description
Upon loading into a world I am given an error "Invalid player data"
Seems to be an incompatibility with Roughly Enough Items.
I do not have this problem when using Just Enough Items.

Steps to reproduce:
Load into any world, existing or new.
I believe this is also reproduceable in 1.19 as well.

Expected behavior:
I expected to be able to log into a world.

Logs
https://paste.ee/p/T3ACv

Screenshots
https://puu.sh/JiZ3S/0130448123.png

Mod list:
[✔️] AmbientSounds_FORGE_v5.0.16_mc1.18.2
[✔️] appleskin-forge-mc1.18.2-2.4.1
[✔️] architectury-4.9.83-forge
[✔️] balm-3.2.0+0
[✔️] bbs-1.0.2-1.18.2
[✔️] BetterModsButton-v3.2.2-1.18.2-Forge
[✔️] BetterThanBunnies-1.18-1.2.0
[✔️] BetterThanLlamas-1.18-1.1.1
[✔️] Bookshelf-Forge-1.18.2-13.2.49
[✔️] BowInfinityFix-1.18.x-rv11
[✔️] catalogue-1.6.2-1.18.2
[✔️] clienttweaks-forge-1.18.1-7.1.0
[✔️] cloth-config-6.2.62-forge
[✔️] Clumps-forge-1.18.2-8.0.0+15
[✔️] configured-1.5.4-1.18.2
[✔️] Controlling-forge-1.18.2-9.0+22
[✔️] craftingtweaks-forge-1.18.2-14.0.3
[✔️] CraftPresence-1.18.2-Release-1.8.11-universal
[✔️] CreativeCore_FORGE_v2.6.15_mc1.18.2
[✔️] curios-forge-1.18.2-5.0.7.1
[✔️] DeLogger-4.0.0-build.4+mc1.18.2
[✔️] Ding-1.18-1.3.0
[✔️] eccentrictome-1.18.2-1.8.0
[✔️] effective_fg-1.1
[✔️] EnchantmentDescriptions-Forge-1.18.2-10.0.8
[✔️] extremesoundmuffler-3.28_forge-1.18.2
[✔️] EyesInTheDarkness-1.18.2-1.2.7
[✔️] Fallingleaves-1.18.2-1.3.2
[✔️] FarmersDelight-1.18.2-1.1.2
[✔️] FastLeafDecay-28
[✔️] flatbedrock-1.4.2-build.10+mc1.18.2
[✔️] ftbbackups2-forge-1.18.2-1.0.13
[✔️] ftb-chunks-forge-1802.3.6-build.147
[✔️] ftb-essentials-1802.1.7-build.42
[✔️] ftb-library-forge-1802.3.6-build.140
[✔️] ftb-teams-forge-1802.2.6-build.51
[✔️] ftb-ultimine-forge-1802.3.3-build.55
[✔️] geckolib-forge-1.18-3.0.36
[✔️] glassential-forge-1.18.2-1.2.3
[✔️] Iceberg-1.18.2-1.0.44
[✔️] illuminations-forge-1.18.2-0.0.4
[✔️] InventoryHud_[1.18].forge-3.4.4
[✔️] inventorysorter-1.18-19.0.0
[✔️] kubejs-forge-1802.5.4-build.535
[✔️] LegendaryTooltips-1.18.2-1.3.0
[✔️] light-overlay-6.0.5-forge
[✔️] lootr-1.18.2-0.2.19.56
[✔️] Measurements-1.18-1.2
[✔️] mob_grinding_utils-1.18.2-0.4.44
[✔️] modnametooltip-1.18.1-1.18.0
[✔️] MouseTweaks-forge-mc1.18-2.21
[✔️] NaturesCompass-1.18.2-1.9.7-forge
[✔️] Notes-1.18.2-1.2.4
[✔️] okzoomer-1.18.2-1.1.0
[✔️] Patchouli-1.18.2-71.1
[✔️] Placebo-1.18.2-6.6.3
[✔️] polymorph-forge-1.18.2-0.44
[✔️] PresenceFootsteps-1.18.2-1.5.0-beta2-forge
[✔️] Prism-1.18.2-1.0.1
[✔️] radium-0.7.10
[✔️] radon-0.8.1
[✔️] rer-2.5.2
[✔️] rhino-forge-1802.1.14-build.225
[✔️] RoughlyEnoughItems-8.3.529
[✔️] RoughlyEnoughItems-jei-internals-workaround-8.3.529
[✔️] RoughlyEnoughProfessions-fabric-1.18.2-1.0.1
[✔️] RoughlyEnoughTrades-1.1
[✔️] rubidium_extras-1.18.2_v1.3.2
[✔️] rubidium-0.5.3a
[✔️] screenshot-to-clipboard-1.0.9-forge
[✔️] shutupexperimentalsettings-1.0.5
[✔️] Snad-1.18.2-1.22.04.15a
[✔️] SoL-Carrot-1.18.1-1.12.0
[✔️] soundphysics-forge-1.18.2-1.0.6
[✔️] starlight-1.0.2+forge.546ae87
[✔️] The_Graveyard_1.9.2_(FORGE)_for_1.18.2
[✔️] theoneprobe-1.18-5.1.1
[✔️] Tips-Forge-1.18.2-5.0.8
[✔️] ToastControl-1.18.2-6.0.3
[✔️] tombstone-7.4.11-1.18.2
[✔️] topaddons-1.18.2-2.3.0-beta
[✔️] torohealth-1.18-forge-2
[✔️] trashslot-forge-1.18.1-11.0.2
[✔️] tumbleweed-1.18-0.4.12
[✔️] uneffectual-1.18.2-1.0.0.1
[✔️] waystones-forge-1.18.2-10.1.0
[✔️] Xaeros_Minimap_22.13.2_Forge_1.18.2
[✔️] XaerosWorldMap_1.26.6_Forge_1.18.2
[✔️] YouDied-1.18.1-1.0.0.3

Thank you for helping with the project! Your reports are appreciated!

Game works without Roughly Enough Resources

Yeah, seems to be some conflict with RER, though the stacktrace doesn't make it clear on which end the bug happens. There seem to be a few related issues on RER's issue board, where it happens with other mods.

For now I'd just recommend disabling RER, and checking their issue board. I'll take a deeper look on this later.

After looking at a more recent issue, this does seem to be a problem with Roughly Enough Resources indeed. I'm closing this issue and referring to the new one for now: #565

Update: turns out this was on my end. I made a mistake when setting up my loot functions, which caused the error.

Fixed on commit 6591911, should be out later for 1.18, 1.19 and 1.20. 👍