I ran into a strange issue I've never encountered before and am wondering if I accidentally triggered something I didnt intend to. 

I was early in my STAR to KORD ILS28R when ATC all of a sudden vectored me in to the runway. I was pretty far out still, had a number of waypoints to go. No reason to be vectored from where I was.  I DID accidentally hit the approach button on the map to bring up the yellow lines, hence my "did I do something on accident" question.   As soon as I got vectored, my flight went to hell.  My descent was totally shot from that point because ATC wanted me back at my original FL.  I was coming in way way way too high.  Also had the heading/wind problem the entire way being vectored. It wanted me to "turn right to XYZ" when I was already to the right of that heading, etc... 

Pilot2ATC is usually very very solid for me so this definitely struck me as odd.  I plan to fly the same route within the next couple of days to see if I can replicate it, but wanted to inquire about it. 

What I think is the pertinent snippet of the logs below.  Looks Like I took an exception of some sort before things went crazy.  The log shows me (early) in a descent from FL350 to 4000' before the exception, at which point it wanted to keep me back at FL350 and vectored me.

 

Recognized Speech: UPS Five One HEAVY Descending to Four Thousand Feet 22:46:40
HandleInitialContact 22:46:40
SpokenRandomGreeting 22:46:40
HandleInitialCenterContact 22:46:40
CheckSquawkCode 22:46:40
SpeakAltimeterSetting 22:46:40
ControllerChanging: False : 06/24/2021 22:46:41
UnInterruptAudio in OnSayItSpeakCompleted 06/24/2021 22:46:41
AudioInterrupts: 0 in UnInterruptAudio 22:46:41
InterruptAudio in SayPhrase: UPS Five One HEAVY  good evening .  Radar Contact.  Altimeter Two Niner Niner Three 06/24/2021 22:46:41
AudioInterrupts: 1 in InterruptAudio 22:46:41
ATC Speak:  UPS Five One HEAVY  good evening .  Radar Contact.  Altimeter Two Niner Niner Three22:46:41
Sug Resp:  ~ Altimeter Two Niner Niner Three22:46:41
OnTTSWavePlaybackStopped 06/24/2021 22:46:48
UnInterruptAudio in OnTTSWavePlaybackStopped SugRes:~ Altimeter Two Niner Niner Three UPS Five One HEAVY 
 06/24/2021 22:46:48
AudioInterrupts: 0 in UnInterruptAudio 22:46:48
NewGPSWpt: VINCA
NewATCWpt: VINCA
RespondToFlightTrigger 22:47:45 Trigger:ReachedNextSTARWaypoint
RespondToFlightTriggerValidated 22:47:45 Trigger:ReachedNextSTARWaypoint
rOnReachedNextSTARWaypoint 22:47:45
rOnLastSTARWaypointReached 22:47:45
SetUpILSApproach 22:47:45
FltPlan ActiveAPPR: ILS - RW28R - I28R - 
AssignedRunway: RW28R - 
PrepareApproachForVectorsToIF:ILS - RW28R - I28R 22:47:46
AssignedAPPR: ILS - RW28R - I28R - 
StartVectors to ILS - RW28R - I28R
AssignedRunway: RW28R - 
NewNextWpt: TOD PT - 22:47:48
SpokenAssignedAltitude: 35000 22:47:49
SpokenAssignedAltitude: 35000 22:47:49
State Changed to: IFRVectoredArrival 22:47
SpokenRandomGreeting 22:47:49
Error checking trigger: ReachedNextSTARWaypoint----System.InvalidOperationException: Collection was modified; enumeration operation may not execute.
   at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
   at System.Collections.Generic.List`1.Enumerator.MoveNextRare()
   at P2A_2020.P2AStateMachine.CheckActiveTriggers()
InterruptAudio in SayPhrase: UPS Five One HEAVY  Turn Right Heading Zero Four Five vectors to the  ILS  approach for Runway Two Eight Right at CHICAGO OHARE  INTERNATIONAL  Maintain Flight Level Three Five Zero Contact Approach on One Two Five Point Seven good evening  06/24/2021 22:47:49
AudioInterrupts: 1 in InterruptAudio 22:47:49
ControllerChanging: True : 06/24/2021 22:47:50

 

You may have hit a bug that has been fixed for the next update that caused the weirdness.

In general, you can expect vectors, even in the middle of a STAR, if the angle of the turn to final is more than about 45 degrees.  You will also get them if the STAR has a "manual termination" in the procedures data.

Dave