I've set up a number of custom data points. Most of them don't have identifiers. No problems.

The ones with Identfiers are double-displaying in the plog. Example -
Name: My Waypoint
Identifier: CPT090005
Airfield: EGLL

... shows as
CPT090005 CPT090005 (My Waypoint) (EGLL)

This is common to the iOS and PC versions, both latest version.

What am I doing wrong, or how can I stop this please.

Could you give a little more detail as to exactly what fields you are populating in your user waypoint?

I just created one with a name of "Test" and an identifier of "TESTIDENT". When I route via that waypoint, it appears in the PLOG as TESTIDENT Test which seems alright. How do you make it misbehave?

Attached - screen grab from the editor and the plog (PC). iOs plog looks just the same.

Ah, you're talking about custom aeronautical data. That makes more sense. I think VRPs are supposed to have either a name or an identifier but not both. What you're seeing is probably a consequence of the fact you have filled in both.

It might be good to default to one or the other in case both fields are filled out by the user. Or, better yet, change the program so that the user can fill out only one of the two (i.e., a simple radio button control would do the trick).

-- Chris.‌‌