I know the same problem Ewerton M posted into community.
I have (had) the same problem with my studio:
Windows 7 x64 ultimate
Chrome Version 57 but now updated to “Version 62.0.3202.94 (Official Build) (64-bit)”
And with “running” thingworx studio 8.1.1 (22.214.171.1243) when I try to open existing project (“Motor-Sept2017” as you can see here) I see the “empty” 3D canvas as below:
First of all I check the communication with Experience Service which I used before for preparing my project. I receive local error message like this:
It means I cannot access to my real active Experience Service (and may be it related to my “empty 3D canvas” ) . OK, it can be repaired by changing value of “Experience Service” field in “Configuration” menu item “Info”:
Experience Service asks me for authentication:
And if I use the mandatory Username/Password…
I get the access to active Experience Service and fo be sure I validate my active Experience Service with actual Username/Password
After validating with active Experience Service UIRL I can see “non-empty” 3D canvas on the same Chrome browser.
If you have the same problem may be you can heal your studio with the same/similar steps.