I know it is a difficult task to present all the worldwide VFR airspace correctly. However, in case you still strive for this:

In AIP: FMC Padova Central has an upper limit of "lower vertical limit of overlying controlled airspace".

In Skydemon: FMC Padova Central has an upper limit of 5000 ft

Obviously it is difficult to handle such "non-standard" airspace definitions, as it would probably require some code changes in your airspace parser and renderer.