In Infinite Flight’s most recent update the support for vertical guidance for GPS approaches were removed. Here is a quote from Tyler Shelton, ATC Community Manager.
“The GPS is not a precision approach. Much like others said, the glideslope portion of this was removed which offers a higher level of realism.
When planning your arrival phase in IFR conditions you should plan to utilize the instrument runway or divert to a field with an ILS. This occurs in the real world quite often as well.”
Controllers will no longer vector for GPS approaches, period, due to the recent change.
“Controllers have been instructed to offer the ILS or the visual.
But like you said, you could still technically fly an RNAV by setting up the final’s waypoints without it being a precision approach. We’ll be iterating as we go, to include adding more approach options that include this scenario, but for now you can expect controllers to ensure the instrument runway is in use in a low IMC scenario.”