When I try to grab the part to the 4th weapon, I get the "reference not set to an instance of an object' error.

Log: Loading "3rd level"
Dev: Spawning server map34
Log: GB: Map goes from (-1616,-1024) to (1768,2944)

Log: GB: Creating Segs...

Log: ---------------------------------------
Log: WOLF CHAPEL
Log: 
Dev: 216 subdivides
Dev: 377 seg subdivides
Dev: 87k light mem
Dev: Client level loaded
- (svprogs.FourthWeaponPiece.GetPickupMessage)
- RunFunction
- (svprogs.FourthWeaponPiece.GetPickupMessage 16)
- RunFunction
- (linespec.Inventory.TouchSpecial 35)
- RunFunction
- (linespec.EntityEx.Touch 720)
- VObject::ExecuteFunction
- (linespec.EntityEx.Touch)
- VEntity::CheckRelPosition
- VEntity::TryMove
- RunFunction
- (engine.Entity.TryMoveEx 0)
- RunFunction
- (linespec.EntityEx.XYMovement 477)
- RunFunction
- (linespec.EntityEx.Physics 253)
- RunFunction
- (linespec.EntityEx.Tick 232)
- VObject::ExecuteFunction
- (linespec.EntityEx.Tick)
- VThinker::Tick
- RunThinkers
- P_Ticker
- SV_Ticker
- ServerFrame
- Host_Frame
Log: Doing C_Shutdown
Log: Doing CL_Shutdown
Log: PLAYER left the game

Log: Doing SV_Shutdown
Log: Doing delete GNet
Log: Doing delete GInput
Log: Doing V_Shutdown
Log: Doing delete GAudio
Log: Doing T_Shutdown
Log: Doing Sys_Shutdown
Log: Doing delete GSoundManager
Log: Doing R_ShutdownTexture
Log: Doing R_ShutdownData
Log: Doing VCommand::Shutdown
Log: Doing VCvar::Shutdown
Log: Doing ShutdownMapInfo
Log: Doing FL_Shutdown
Log: Doing W_Shutdown
Log: Doing GLanguage.FreeData
Log: Doing VObject::StaticExit
Log: Doing VName::StaticExit
Uninitialised: Doing Z_Shutdown


ERROR: Reference not set to an instance of an object

I've noticed that Hexen crashes anytime you pick up a fourth weapon piece once you already have the weapon. If you use "gimme weapons" then pick on the piece on map02 you get the same crash. I don't know if picking up the same piece trice crashes it or not (I suspect that). What I do know is that if you have the fourth weapon and pick up another piece Vavoom crashes.

Can be reproduced with svn r.3595, you just need to use some mana to be able to pick up the weapon piece after `gimme weapons`. Of course I refer to BlackJar72' report.

[quote="mnk":2gi9bqut]Can be reproduced with svn r.3595, you just need to use some mana to be able to pick up the weapon piece after `gimme weapons`. Of course I refer to BlackJar72' report. I don't have the latest svn release, but I know that in 1.25 - 1.27.1 you most be sure you do not use mana any mana. If you have full mana you walk harmlessly over the piece (it stays there and there is no crash). If you do not have full mana the piece is picked up, resulting in an instant crash. (I don't include any debug logs because the original poster had one for the same problem.) If mana is available, you may pick it up, but if you cannot reach full mana the weapon piece becomes an obstacle.

Fixed.