rjtiedeman, I have also experienced something similar to this. I have a favorites file with image-based textures that worked fine on VW 2016 through SP4. When I installed VW 2017, the migration manager would not/did not convert the file. I can no longer test the Migration Manager because all the files now have VW 2017 icons and MM won't let me open them (they are greyed out in the open dialog) But if I try to open the favorites file with the VW application, it crashes the application... every time. All this still happens after upgrading to VW 2017 SP1.
There is an odd but accidentally fortunate symptom associated with this problem... although it won't open the favorites file with the textures in it, I can open VW files (now 2017 files but descended from 2016 files) that reference the textures in the favorites file. When VW starts up and opens the file, I get a three-line message about the fact that "One or more referenced files..." (see screen shot of warning message below). but at least it opens the project file. You would think that the that he referenced textures are not available but they actually are visible and available in the resource manager as if the library file had been properly converted!
Being limited in how much time I have to try and work around all the bugs that occur in VW, I just moved on. But this is bad... the migration process is broken with respect to textures in VW 2016 files.
Vectorworks Engineering, please look into this and fix it.
PS, A note to everyone at Vectorworks... Most of us love the program and we will stick with it, but you really have to do something about all the bugs. As you can see by reading messages on this board, users are driven to distraction by the serious decline in reliability. Regardless of the statistics that I have seen that say the incidence for crashes, etc, vs other programs is similar, our favorite Vectorworks needs to hold itself to a higher standard. VW 2016 SP3 worked reasonably well for me. VW 2016 SP4 damaged some things I used that worked fine in SP3. Now, VW 2017 has hit a new low, and SP1 did nothing but make the problems worse. And telling us to switch the 3d rendering preference to good performance/more compatibility is a very weak remedy and cosmetic only. For instance, I have a pretty good rig and yet whole pieces of the rendered image are routinely missing after switching to a standard rotated 3d view with OpenGL on. My hardware did fine with the same files in VW 2016. You guys must have done something to hobble it, even if unintentional. And the site modeling is a disaster... never did work well and now is almost unusable. Please take this seriously. Suspend or background introduction of new features and fix the bugs, please.