Hi Alexander,
Apologies for the late reply, I've been on an extended period of annual leave.
I've checked back on my notes and we retained the Application Parameters iView setting exactly as I state above but I had to ask our Java developer to explicitly add the static parameters P_CATID and P_TYPEID to the dynamic URL call to launch the iView.
So for example, an example URL would be:
... ivu.view_trip?sap-config-mode=true?P_CATID=BO&P_TYPEID=BUS2089&P_INSTID=000614330000120800
This cured the problem though I'm unsure whether it is still essential that the static parameters need to exist in the iView configuration. We had many issues at that moment in time I was just pleased to find a solution.
Good luck!
Alan