Have you installed anything new recently, specifically GPU drivers? And what OS are you using anyway?
Are the images especially large or the 3D object highly complex?
Have you tried changing the »Advanced Settings« in the Performance Preferences and restarting Photoshop?
Have you performed the usual trouble-shooting routines (trashing prefs, 3rd party plug-ins deactivation, system maintenance, cleaning caches, font validation, etc.)?
Hey, thanks for replying!
I have made new installs recently, but this problem was occuring well before, namely even with placed .obj files that, after closing and restarting PS they would be located at a different place in the scene and also be "stuck" like this.
I'm on Win7
The PS docs are 11.5x9 @ 300 dpi, and no 3D complexity or poly count doesn't seem to be the culprit, since the problem occurs with a simple 3D postcard created within PS, or a more complex placed .obj file.
Yes I've tried changing the performance settings and restarting. Problem reoccurs.
Some of the trouble-shooting routines you list I have tried, others I haven't, but I don't see how somethinglike deleting the prefs could help, but I could try as a last resort.
Can't offer much in the way of help, but I've seen it too, and have reported it to Adobe. I have an image in which I've placed a virtual motorcycle, and everything went well until I tried to tilt the bike over so it would look as though it is leaning on a kick stand. I even rendered and saved it that way. Now whenever I reopen the document, and do anything in the 3D space the bike jumps back up to a straight upright position. Even if all I do is hit the render button it does this.
Yea Noel, exactly what's happening to me. And of course, since 3D objects can't be deleted after they've been merged with a 3D layer, all you can do is simply hide the "bad" object and replace it, bloating the document size further. If it were possible for multiple separate 3D layers to interact with each other (same lighting, reflect of each other, share shadows, etc), you could simply delete the object and replace it. But I'm really scratching my head as to why Adobe chose to not allow these two things. It would make the workflow MUCH faster, for me anyway. Even a toggle for object interaction would be awesome.
I have asked them for more depth in manipulating objects in the 3D panel. Even being able to re-order them would help with organization, and you're absolutely right - being able to delete individual objects would be a big functionality improvement as well.
Yup I've had the same problem.