**problem is solved. I had to renew the permissions described like here (LINK). ** Thank you all for tryinig to help!!!
Hello,
I bought a new Mac and installed a totally new system, not from a backup. When Stack Updates are shown, I can install them, but it seems they are saved in a wrong place. When I restart RW, the same stacks are shown again in the update-window.
I use the feature to select a place for the add-on folder, the stacks are all there in a folder named “stacks”.
For Dan, Simon, or anyone else interested in troubleshooting the issue, here’s a link to the pdf detailing the issue and the steps I took to try and troubleshoot: