I think Asobo must have changed something in airport DB coding as the following Heliports are not being picked up by LNM even though they still exist in the sim.
(They also deleted a number of fictional POI idents)

ident    name
4CA1     US Bank Tower Helipad
EGLT     The Needles Lighthouse Helipad
KWHH    White House Helipad
LIBH       Lingotto Building Helipad
NK80     Rainbow Air Incorporated Heliport
OBAR    Burj Al Arab
VVBF     Bitexco Financial Tower Helipad
WMMT    Menara Telekom Tower Helipad
 

Probably due to this change in 3.0.8:

Quote

* 3.0.7.rc1 to 3.0.8: Now excluding all Microsoft POI libraries from MSFS. These libraries contain
  POIs modeled as fake airports and are partially not readable. The folder exclusion affects all
  matching the pattern `*\Official\OneStore\microsoft-*-point-of-interest\*`.

The related files are not readable and cause all kind of issues.

Then it's also difficult to find the difference between heliports and fake airport structures representing POIs (Parks, Buildings, etc.).

Alex

Thank you - that would explain it