As some have mentioned, the myCADtools tools no longer work since this weekend due to an internal malfunction;
This bug will be corrected during the day by our teams and you can still contact technical support so that they can manually access the restart of the tools.
We are sorry for this inconvenience and would like to keep you informed of the restoration of the myCADtools.
Since this weekend, there is indeed a problem on the 2020 and 2021 versions of myCADtools, related to an end of certificate (signatures of our dlls and exe)
This generates an error and a message related to registration.
This morning, we released a new version that fixes this issue.
Here is the latest official version that fixes this 2021 sp1.3 issue