Quick Level-Up in the game

The level-up logic in my game is acting up: players earn the required XP, yet their level label doesn’t advance and none of the reward events trigger. Everything else works fine, so the issue is isolated to the progression script... (Budget: $10 - $30 USD, Jobs: C# Programming, C++ Programming, Game Design, Game Development, Game Optimization, Game Programming, Game Testing, Godot, Unity, Unreal Engine)