wintereise

Edit: This has now been patched. Please download the latest version.
 
To those crashing on the Assorted Callouts Traffic Stop Backup Required/Stolen Police Vehicle calls, or those having issues with a plugin that spawns emergency vehicles at some distance away (e.g. BetterEMS by @PNWParksFan ):
 
This is caused by ELS taking over the ELS vehicles these plugins spawn if you have a VCF installed for them.
Because they spawn a distance away, ELS cleans them up instantly and deletes them.

Thus, an ELS update will have to be released to fix this.
For now, you can change the ElsMaxRangeAi setting in the ELS.ini file to increase the range before ELS vehicle are cleaned up. Change it from 500 to something like 2000. Do note that the higher this number, the more significant the performance impact may be.
Alternatively, you can disable ELS taking over AI in the ELS.ini file, or remove all ELS vehicles from the default emergency vehicle slots (ELS addon vehicles are not as likely to cause this, as most plugins only spawn default emergency vehicles).
 
I have been getting very many questions and reports about issues caused by this, so I figured I'd post it here. Feel free to link those that apparently don't know to this topic.
 
Full technical explanation for those who are interested, click here.
Cheers.