The PC isn't the newest, it is 8 years old now and still runs with Windows 8.1
But I think it isn't a problem with the cpu power or something, because some hours earlier there was no Problem with playing or loading the presets.
I am now testing some things and I found out, that the Problem is the part where I can change between Window/Cluster/Shepard. Window and Cluster are working but if I change to Shepard and wanna play the sound from this preset, Pigments crashes. If I use a different preset, take harmonic and change it to Shepard, it works so it is only a problem with Harmonic with Shepard in this 2 presets.
After I changed the Gain in Shepard the presets suddenly worked, even if I change the Gain back to the old position. But after that, I load Pigments again, the same error, even if I changed the Gain in Shepard, it still crashes.
Strange!