When I try to use one of the airports that is missing in the original MSFS2020 database (ETNL in my case), but is available in the current FMS database, LNM does not find it. LNM is configured in FMS and shows AIRAC 2101 Rev 1 installed.
I can select it from within MSFS, where I use the Beta version with AIRAC 2101 Rev 3 at the moment.
I have tried to uninstall the LNM link in FMS and reinstall it, but to no avail.