OBD reader and 2 apps

Montievans

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First Name
Monti
Joined
Dec 16, 2025
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Location
Quebec
Vehicles
2021 mach e premium
I’m pretty sure the answer to this is obvious but here goes
I’ve just got a new to me MME
I have a veepeak blue tooth connector. I attached it and then opened car scanner I looked at that briefly and then Whilst that was open I also opened another app OBD fusion

then I got a big error, « drive train failed « (I think). And it said pull over.
I was stationary , closed apps pulled out dongle and went to google what was wrong! After waiting 15 minutes it was all back to normal.
My question is - was it my stupidly having 2 apps open that caused the issue or could it be the dongle. I’m worried to try again but use that dongle all the time in other cars with obdfusion with good success

any help appreciated
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