Shortcut keys not working in “New Folder” dialog within Save As dialog is tracked with this issue – https://illustrator.uservoice.com/forums/601447/suggestions/39374122
Overall issue of shortcut keys not working in Save As dialog is fixed in Illustrator version 24.0.1
An error occurred while saving the commentAnonymous commented
Same issue here. Only happening with Illustrator 2020, not Indesign or photoshop.