Problems with NG and junction view in UK

[paultbg]

I have a weird problem with iGO Navigation 9.18.27.693527 - 14.mar.2017 maybe someone smarter than me can help.
The navigation works very well as long I'm NOT on the motorway. As soon as I enter any motorway AND the app is showing one of the Junction signs is crashing.
I have tried with and without the junction map for UK loaded on the card, same thing.
Also I have tried to disable showing the junction from the menu but it it's still crashing when it is supposed to sign one of the damn junction signs.
I'm using the original sys.txt from the archive and under CONTENT/ Junction View is saying NNG but no other details like date, file name etc. (no UK junction map loaded atm).
Can someone please advise?
Regards