G1000 (Kodiak 100) no Flight Plan Catalog for SimBrief

I haven’t flown the Kodiak 100 in about three weeks- when I returned to it today in MSFS2024, the Flight Plan Catalog in the G1000 FPL section allowing me to import Simbrief plans was greyed out- it’s been working seamlessly before now. Plugin version is 2.1.2. All other plugins show as upto date. I note some comments in the Navigraph Discord discussing issues with the G3000 loading Simbrief, and that these are currently under investigation. Could my issue be related?

(As yet I have not tried a default aircraft with G1000 to see if this is aircraft specific or G1000 related or the plugin.)

(Edit: I can reproduce this issue in a default MSFS2024 Cessna running the G1000- Flight Plan Catalog is greyed out, so it is not an aircraft specific issue).

(Edit #2: In the Cessna which is a 2024 native aircraft, I can use the EFB SimBrief DIspatch to import a Flightplan and load it to the G1000. However, this doesn’t work in the Kodiak, presumably because it is still a “2020 Aircraft” and using a 2020 version of the WT Garmin; clicking “Import route” has no effect in the G1000. )

(Edit #3: It may or may not be relevant but despite having the Navigraph EFB Charts App v1.0.7 installed, it does not show up in the MSFS2024 EFB.)