NullReferenceException after performing oil service reset

[Peter K]

Everytime, after performing an oil service reset, everything works fine until the message "turn off the ignition for 60 seconds" appears. After a few seconds, the connection is terminated and the window crashes, returning to the main window in MES. The following error message pops up (apologies, it's in Dutch):
(https://ibb.co/219FfG3n)
Detailed:
(https://ibb.co/LX0JsC5L)

I believe the oil service reset itself does get exectued succesfully..

Any ideas what might cause this error?

[shpuncik]

I'd check for .NET updates.

[Peter K]

Thanks, already done, no difference...

[s130]

Can you post the FULL exception information.

You should be able to enlarge the window and select and copy the contents.

[Peter K]

Well, we've done multiple resets now, same results over and over again.
As the car has done several miles by now, I don't want to reset it again.
So the picture(s) above is the only one for now...couldn't enlarge the window, I'm afraid...

[abarthmultijet]

I am thinking a software bug. Try to update to the latest version 5.3 instead of 4.6.