Hi,
Thanks a lot for the info and help. It turned out the issue was on Quartus’ or Windows’ side – I solved the problem last night.
Specifically, on a clean Windows installation, I installed Quartus 24.3.1, and synthesis completed successfully without any errors. So I started looking for the issue on my PC.
Since we have different projects, we also use different versions of Quartus, namely 13.0, 18.1, 21, 22, and the latest 24. I checked the Windows PATH, and it pointed to the newest version.
However, I began removing older versions from the system one by one, and only after removing version 21 did the synthesis finally go through correctly in version 24.3.1.
Apparently, some references were assigned to a path they shouldn’t have been.
The main thing is that the problem is solved. Thanks again for your help!