Odds are the Version value displayed on the asset page -- tblAssets.Version -- is something Windows is reporting. LANSweeper asks Windows to report all kinds of things about itself, and different requests for information often return slightly different values.
In this case, wherever Windows is pulling the Version information from, it clearly isn't quite consistent with the public names they're using for the release versions. As a consequence of this, when the LANSweeper folks release reports that include the Win10 version, they're ignoring the Version value and instead using the Build value to determine and display Microsoft's public version names/numbers.
How can we update the Version shows on the asset page? We can't. That's what Windows is reporting its version as. Think of it as asking someone named Michael to tell you his name and him responding "call me Mike". You want him to tell you his true name, but he keeps telling you to call him by his nickname. We'll just have to read the version and interpret it ourselves: 2009 = September 2020 = second half of 2020 = 20H2, just as recognizing that Mike = Michael.
It's not like the reported Version values are technically accurate anyway.
- 1803 was released in April, so should have been 1804.
- 1809 was released in October, so should have been 1810.
- 1903 was released in May, so should have been 1905.
- 1909 was released in November, so should have been 1911.
- 2004 was released in May, so should have been 2005.