I have this weird bug that takes away all my weapons except physgun and toolgun and camera. So, when I go on construct I only have those 3. (Note this is only in single player.) Some maps even take away all my weapons.
The current mods I have right now (Incase this is the problem)
Extra NPCs (You know like striders, stalkers, ceiling cameras)
Modern Weapons
Ragmorph
If you have any solutions please post so.