MacOSX 10.14.6 unable to create folder when saving file using shortcut (ID16.0.1)

[#1]

The new version of Indesign 2021 is unable to create a folder anywhere on my computer or on the networkserver from the saving dialogue using the shortcut cmd-shift-N. This happened before with the 2020 version of Illustrator. I have updated my version of Indesign to the latest version.

The button for new folder works, the shortcut doesn't. Please fix this simple thing please Adobe.

[#2]

The new version of Indesign 2021 is unable to create a folder anywhere on my computer or on the networkserver from the saving dialogue using the shortcut cmd-shift-N. This happened before with the 2020 version of Illustrator. I have updated my version of Indesign to the latest version.

The button for new folder works, the shortcut doesn't. Please fix this simple thing please Adobe.

[#3]

What Operating System?
System Specs?

[#4]

As mentioned in the title: MacOSX 10.14.6 on a 2014 iMac. System specs do not really apply since this is a software fault.

[#5]

Sorry about that _ I scrolled down and missed that part as it was hidden!OOPS

https://helpx.adobe.com/ie/indesign/kb/macos-big-sur-compatibility.html

Is InDesign compatible with BigSur?

• InDesign 16.0 and above versions are compatible with Big Sur (macOS 11).
• InDesign 15.X and earlier versions have not been tested for compatibility with Big Sur (macOS 11).

[#6]

This question does not relate to compatibility for Big Sur. There are valid reasons people do not upgrade their system to the latest versions (for instance: Metal starting from 10.15).