I have satisfactorily updated to SP6 & hotfix in Trainz22, thank you N3V. I am now reviving a route I built which worked well in Trainz19.
I'm experiencing something similar to the 'incompatible spline' problem:* some landscape splines (fences, paths) are appearing in Surveyor as 'missing track'. I can even place trains on them! Missing track also appears as missing track, but that's OK.

scenery-spline-track by Rob Kievit, on Flickr
In Map view too, these scenic splines appear as blue lines, as if they were tracks.
What can I do to revert these misbehaving track-like splines to their original Scenery Spline status? I have tried the 'open for editing, submit, and revert to original' workaround on them, to no avail.
*https://forums.auran.com/threads/incompatible-spline.170577/
I'm experiencing something similar to the 'incompatible spline' problem:* some landscape splines (fences, paths) are appearing in Surveyor as 'missing track'. I can even place trains on them! Missing track also appears as missing track, but that's OK.

scenery-spline-track by Rob Kievit, on Flickr
In Map view too, these scenic splines appear as blue lines, as if they were tracks.
What can I do to revert these misbehaving track-like splines to their original Scenery Spline status? I have tried the 'open for editing, submit, and revert to original' workaround on them, to no avail.
*https://forums.auran.com/threads/incompatible-spline.170577/
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