I have also found that some tables will not save the XY settings no matter what you do.
So for these, you can load the table into the Visual Pinball Editor, and click the "File" tab...then click "Export"...then click "Backdrop POV.
This will save an XML file that can be opened and modified with notepad.
Here is what a typical one will look like...
**************************************************************
<?xml version="1.0" encoding="utf-8"?>
<POV>
<desktop>
<inclination>36.000000</inclination>
<fov>50.000000</fov>
<layback>20.000000</layback>
<rotation>0.000000</rotation>
<xscale>1.220000</xscale>
<yscale>1.060000</yscale>
<zscale>1.000000</zscale>
<xoffset>0.000000</xoffset>
<yoffset>0.000000</yoffset>
<zoffset>0.000000</zoffset>
</desktop>
<fullscreen>
<inclination>5.000000</inclination>
<fov>30.000000</fov>
<layback>75.000000</layback>
<rotation>270.000000</rotation>
<xscale>1.000000</xscale>
<yscale>1.050000</yscale>
<zscale>1.000000</zscale>
<xoffset>-60.000000</xoffset>
<yoffset>0.000000</yoffset>
<zoffset>-200.000000</zoffset>
</fullscreen>
<fullsinglescreen>
<inclination>36.000000</inclination>
<fov>50.000000</fov>
<layback>20.000000</layback>
<rotation>0.000000</rotation>
<xscale>1.220000</xscale>
<yscale>1.060000</yscale>
<zscale>1.000000</zscale>
<xoffset>0.000000</xoffset>
<yoffset>0.000000</yoffset>
<zoffset>0.000000</zoffset>
</fullsinglescreen>
</POV>
********************************************************
So if XY or rotation settings are not saving for you, try editting the XML file that you can export from table. After you make your changes, simply click "File" tab...then click "Import"...Backdrop POV. Now you can import your changed settings by browsing to and clicking the XML file you just editted.
Also, if you find a table that you like the settings on, try exporting that tables POV xml file, and import it into another table to help give you same settings.
This method may save you alot of time.
Edited by xenonph, 22 December 2017 - 09:10 PM.