Game immediately crashed when clicking the "Create World" button, or "Single Player" button when no world is present. Is very re-producable with only the mod dependencies on the mod list (Tetra, Blue Skies and their libraries).

crash-2024-02-03_18.33.58-client.txt

Same issue. Version of the mod - 1.3.1.2

Fixed it by going into winrar -> open the jar -> data/tetra/replacements/material and open spears.json in notepad++.

Remove bits from line 71 to 62 (cherry spear) and dont forget to remove "," from the (now) last entry. Otherwise its still going to crash.

Hope that helps.

Enjoy!

Thank you both for reporting (and solving!) this issue! An update has been pushed and should resolve this issue.