https://community.graphisoft.com/t5/Installation-update/Using-Archicad-16-with-license-for-17-keep-losing-3D-model/m-p/130474#M15230 If you select a few elements in 2D and display only selected elements in 3D, does it show?<BR /> Or, if you switch to axonomeric view, do they show?<BR /> <BR /> Is it possible that in the Filter Elements in 3D dialog the included Story setting or the Marquee setting causes it? Sat, 01 Feb 2014 12:26:25 GMT Laszlo Nagy 2014-02-01T12:26:25Z https://community.graphisoft.com/t5/Installation-update/Using-Archicad-16-with-license-for-17-keep-losing-3D-model/m-p/130473#M15229 <DIV class="actalk-migrated-content"><T>Hello, I am currently using AC 16 with the AC17 license so that my files are compatible with coworkers who are on 16.<BR /> <BR /> I'll be working along back and forth between 2D and 3D, and then suddenly will "lose" the model. 2D drawings are still there and showing on sheets, but 3D is completely gone.<BR /> <BR /> OS is Windows 7.<BR /> <BR /> Thanks</T></DIV> Fri, 31 Jan 2014 17:54:51 GMT https://community.graphisoft.com/t5/Installation-update/Using-Archicad-16-with-license-for-17-keep-losing-3D-model/m-p/130473#M15229 Anonymous 2014-01-31T17:54:51Z https://community.graphisoft.com/t5/Installation-update/Using-Archicad-16-with-license-for-17-keep-losing-3D-model/m-p/130474#M15230 If you select a few elements in 2D and display only selected elements in 3D, does it show?<BR /> Or, if you switch to axonomeric view, do they show?<BR /> <BR /> Is it possible that in the Filter Elements in 3D dialog the included Story setting or the Marquee setting causes it? Sat, 01 Feb 2014 12:26:25 GMT https://community.graphisoft.com/t5/Installation-update/Using-Archicad-16-with-license-for-17-keep-losing-3D-model/m-p/130474#M15230 Laszlo Nagy 2014-02-01T12:26:25Z