V3.0 projects are not loadable anymore in V5.5 SR1.
When trying to load old V3.0 customer Projects it ends up in an error. (Loading it directly again a 2nd time, it succeeds.)
Workaround:
The error does not happen with the 5.5 Release.
- load the project in 5.5 Release and save it
- load the project in V5.5 SR1 and save it