That’s not what I’m asking for. Go to Help -> About and press “Copy Version Info”
The info should be something like:
Version: (5.1.9)-1, release build
libcurl/7.71.0 OpenSSL/1.1.1g (Schannel) zlib/1.2.11 brotli/1.0.7 libidn2/2.3.0 libpsl/0.21.0 (+libidn2/2.3.0) libssh2/1.9.0 nghttp2/1.41.0
Platform: Windows 8 (build 9200), 64-bit edition, 64 bit, Little endian, wxMSW
wxWidgets: 3.0.5 (wchar_t,wx containers,compatible with 2.8)
OpenCASCADE Community Edition: 6.9.1
Compiler: GCC 10.2.0 with C++ ABI 1014
I think I’ve answered my own question, though. If you’re using a prebuilt windows build you have OCE 6.9.1. (OCC/OCE is the 3d library used for importing/exporting STEP files). I’m guessing this issue would be fixed in OCC 7.whatever they’re on now, which is what some other platforms use.
There have been some other errors related to this as well, which is one of the reasons OCC is currently preferred over OCE as I understand it.
I don’t have any suggestions other than to try to narrow down which model is causing the issue, and see if you can import/re export the model with Freecad or another tool. Maybe that will fix it.