Hey @Geert_Verbist 
Did adding the V1 serial binding from within PaperUI solve the problem?
Cédric says…
I defined a dependency on the serial binding, so when installing the binding from the official distribution I expect the serial binding to be installed automatically. However, using a jar file to install the latest version of the binding might bypass this dependency check. Once the VMBELx en VMB4AN modules are integrated I should make some time to merge all changes of the 12 months back to the official branch