Servus Hans Georg,
looks odd because the Zibo addon uses exactly the same database as the default XP-Plane.
- Which Zibo version do you have installed? Currently it´s 3.46.10 …
- How do you update it?
- What is your X-Plane root path?
I can´t reproduce it, because I see in the default as in the Zibo the correct dates:
Cheers,
Richard