Projected meshes not shown

Since SU6 my custom TWYs (projected meshes) are not displayed in editor nor in
the package. Some parts of the projected mesh are displayed all the time, some
parts in a reverse logic are displayed if zoom out but not displayed if zoom
in, some parts are not displayed at all. All my airports are have been
affected. Only large projected meshes (TWYs) have been affected, the small
ones are not affected. For testing purposes, I can send the project, if
needed. Any hint?

Hello, did you ever find a solution to this?

It’s broken, the workaround is letting your project load, switch from
materials to scenery editor waiting till all objects load then hit load again.
Sometimes it can take 2 or three ‘load’ button pushes to get it to stick but
you can get it to do it 9 times out of 10 following this process.