[FONT="]Finally found time to do some testing of the “Run Time Error! …FSX.exe R6025 – pure virtual function call” and the fixes proposed from others on other forums. This specific error only involves 3[SUP]rd[/SUP] Party AI. It first started appearing after I had added several 3rd party AI addons along with traffic for each (I did not know that at the time it was occurring). The error would occur after 10-20 minutes (sometimes less than 10 minutes but never more than 20 minutes) of flight and not necessarily over the airfields these 3rd party AI were assigned.[/FONT]
[FONT="]After spending a good bit of time researching online I came across information regarding this problem. The earliest post I found dated back to 2014. The latest post was 2017. There may be others. These are just the ones I found. [/FONT]
[FONT="]According to those sources the problem lies within 3rd party AI config files, lights section, special effects other than lighting assigned to a lights function. That said, seems no one has been able to determine which effect is the offender or if there is more than one. [/FONT]
[FONT="]At least one source recommends one of two possible resolutions to eliminate the error: [/FONT]
[FONT="]1. Disable all AI traffic; or [/FONT]
[FONT="]2. Disable all special effects assigned to lights (smoke, after burner, supersonic bloom, etc.).[/FONT]
[FONT="]I now have done limited testing with each of these recommended solutions and can report that, for me, they appear to work.[/FONT]
[FONT="]Testing both solutions involved flying for approx 1 hour, single session, hot switching between airports[/FONT]
[FONT="]1. AI Disabled (0%) - No errors appeared. Session was uninterrupted.[/FONT]
[FONT="]2. Special Effects disabled in AI config Lights section. No lights were disabled. AI Traffic set to 41%. No errors appeared. Session was uninterrupted.[/FONT]
[FONT="]Note: This error never occurred on my old system (Win7 – 64 Home) and I flew FSX approx 7 years. I had essentially the same AI installed; however, they were mostly FS9 models. The error only began occurring on my new Windows 10 system (specs in my sig) after installing the newer FSX models of the same AI. [/FONT]
[FONT="]Obviously this error is not all that common but it does occur. Hopefully this will help in the future for anyone still on FSX if it happens to them.[/FONT]
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[FONT="]Steve[/FONT]