We run a VDI environment with Office Click to Run installer used to update our O365 installation. To date, we have been on Build Version 2002 and our updating process (running the setup.exe with our reference .xml file ) has been patching successfully and the version has changed in keeping with the 2002 build.
However, we've just ran the installer on our German-language enabled image, and we have been bumped from version
December: Version 2002 (Build 12527.21416)
Jan: Version 2008 (Build 13127.21064)
You can see from the below link that there was a Version 2002 release in January 2021 - but none of our other images upgraded to .21064 - they all remained on .21416. So in essence, the patching failed on all of them, but on the image that it worked on, it has broken that image (we have Outlook connectivity problems).