sanhozay wrote in Tue Jun 13, 2017 9:54 pm:Make sure your aircraft is using the old multiplayer protocol. It's on the Multiplayer menu in Flightgear. You want the "visible to all" option.
If you don't see that option, that's not the problem.
The new multiplayer in 2017.2 in compatibility mode is backwards compatible, i.e. basically the same protocol as FG since at least V3.x
The multiplayer packet is in two parts; the first part contains all of the position information - this isn't affected by the 2017.2 changes. This is why MP map still works.
The compatibility affects the second part of the packet that contains the rest of the properties - some are important (such as transponder); but the rest are often used only for animations.
Ideally all clients would be updated to be able to process the new packet format.