@cjr Do you have a paid account on rwgps? Looks like you might need that in order to import POIs - I just tried even a short route with points and it imported into rwgps but no POIs.
Never thought about cue sheet.. the site won't export it so that explains why it disappears when re-imported to rwgps. But it might be quite easy to keep the existing one from rwgps and include it with the re-export, if it's in the loaded route. I'll look into it.
Update: No luck, sorry. Added the section to export but rwgps ignores it when re-uploaded.