Has anybody else run into issues with existing python scripts/tools not working in 21.0.440 (py3.11)? Was something changed about it's python installation? I have a toolset that I've been working on that is almost completely broken in 21.0. The strange part to me is that I've done most of the development in 20.5 Py3.11 so I'm not really sure what could be different since the python version is the same.

I've tested my tools pretty extensively across Windows and Linux in H20.5, 20.0, 19.5, and 19.0 so I'm a bit surprised that moving to a version with the same python version is causing problems.

So it looks like 21.0 now comes bundled with FontTools 4.55.4, which is older than what I've been developing with. One of the errors were caused by issues that were fixed in a later release of fontTools (4.59.0), but the other issue appears to be an actual problem with the version included since it doesn't occur in 20.5 even with the same exact version of FontTools installed

Please log a bug, with a standalone example to reproduce.