Hi @Jaap74,
Apologies for the continued difficulties here. The changes that Mike mentioned above have gone into effect and in many cases resolved issues like the one you’ve reported here. Since there still appears to be an issue with this artist it sounds like there may be incorrect data stemming from our metadata provider which requires some additional investigation.
I am going to bring this issue to our senior technical team for further investigation and I’ll be sure to update you once I have more information here.