Reality Composer In Xcode Beta 4

I have installed Beta 4 MAC OS 10.15 and xCode Beta 4. When I open Reality Composer

on My Mac BOOK it crashes emidiatly after open the default template. All was fine and well in Beta 2

no problem. Creating a RC-Enabled iOS APP and opening Reality Composer Craches xCode Beta 4

emidiatly. I entered a bug with feedback assitenace FB6483210 listing other issues.

Is any one else having similar issues with Beta 4 xCode - Reality Composer.

On iOS the previous verions and the lates update however are working just fine.