Samplemap and Number of Samples, strange errors

[Mighty23]

I have a strange problem with the Sample Map management but I can't figure out what's going on.
My project is based on this:
https://github.com/christophhart/hise_tutorial/tree/master/CustomSampleImport

Some Samples from some Samplemaps I can manage them well, no problem: I see the playhead, I see and edit EditLoop and EditRange correctly. Like This:

With other Samples from other Samplemaps this doesn't happen and the only difference is the velocity structure and the number of samples.

So should I assume that if I have multiple samples per samplemap I can't allow the user to edit them, while if I only have one the user can edit ranges and loops?