In Windows 10, when I close an InDesign file, and open another without closing InDesign completely, my keyboard functionality ceases to work. I have to relaunch InDesign.

This happened on my previous laptop of 7 years, and now does the same with my new one which is 2 weeks old. I thought it was just because my old laptop was getting old, but since it's doing the same on a new computer, I figured it must be a bug.

Using the latest Windows 10 20H2 version, latest InDesign to date of 7 Nov 2020 (v 16.0 x64), Lenovo Legion Y540.

Processor Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz 2.59 GHz
Installed RAM 8.00 GB
System type 64-bit operating system, x64-based processor

Edition Windows 10 Pro
Version 20H2
Installed on ‎10/‎30/‎2020
OS build 19042.610
Experience Windows Feature Experience Pack 120.2212.31.0