Any other Mac users here? Do you have also problems with the app?
Hi Thomas. Firstly I am sorry you are having these issues and have not been able to resolve them with us (me) yet. We have a lot of customers using MacOS, and if there was a big general issue with HDR Light Studio on MacOS, I feel we would be having a lot of support cases about this. But we do not... so there is something specific going on here we need to get to the bottom of.
I will get one of our developers to get in touch with you and try to trouble shoot things with you and get this solved for you. If we find something useful to the wider community of MacOS users, we can post information about it here too. Many thanks for raising this.
In the future, if you have issues, please do not do system reinstalls. There really is not need at all I can think of. As we can easily trouble shoot the existing installation to work out what is happening.