Frequently Illustrator has been freezing when attempting to open recently created Illustrator files. These files can be created or modified from any recent version of Illustrator (versions for 2018 and 2019), but only seem to freeze when opened with Illustrator v23.0.6. The files seemingly will open just fine on v23.0.4 or below (I did not test every version, but I can verify that v23.0.4 works and checked on 2 versions of v22.xx.xx). The freezing occurs irregardless of the computer's operating system (Windows or Mac). It doesn't freeze on all files—but I don't know what variables are causing it. The files it has been freezing on all have one linked .ai file inside of them, 1–3 fonts, and various symbols stored in the document's Symbols library. Strangely, if you don't quit Illustrator, you can reopen the file just fine after saving, but once you quit Illustrator and try again after a few minutes later the file won't reopen until you use v23.0.4 or below.