NpcID 21 is causing servers to delete player construciton and deployables

Greetings,

For safety XDQuest should be removed from any servers experincing problems, until its updated.

Since the Facepunch player+npc id changes took effect, XDQuest needs to be updated.
The predefined npc id for the questgiver npc of 21 needs to be removed from your code, or edited as you see fit.

manually removing the predefined npc ID from the plugin,
allowed us to continue to use XDQuest but the server had to be wiped.

When Rustededicated starts and finds the saved Npc ID  that overlaps with vanilla NPCids  which are in this set of numbers,
Then when a server sees this error it NUKES everything by doing a massive deletion of players entities in large strings, 
that part is a flaw or a simple disregard, in Facepunches code as this should not be possible on Vanilla and seems like a failsafe,
However in the case of modded servers this can be a catastrophic mess.


Anyhow,
please change this npc ID line as soon as possible as it triggers this error and results in mass deletion of player entities. 
 

The error looks like  this: 

Skipping entity 31434 - it's a player 21 who is in the save multiple times
Skipping entity 31435 - it's a player 21 who is in the save multiple times
Skipping entity 31436 - it's a player 21 who is in the save multiple times
Skipping entity 31437 - it's a player 21 who is in the save multiple times
Skipping entity 26866845 - it's a player 21 who is in the save multiple times
Skipping entity 31439 - it's a player 21 who is in the save multiple times

except it usually has between hundreds to thousands of entries.   

This affects the entire server save and cant be resolved until the save is wiped. 
Or manually injected with a script to clean up the problem, which in istself is difficult for most.


Thanks in advance and I hope this can be updated soon.

Thanks to Steenamaroo for direct assistance in pinpointing the source of the npc id issue