If the VR browser is entered while the phone is in portrait mode, the view will be rotated 90 degrees such that only one eye viewport is actually drawn on the screen. The attached image shows this.

This is easily fixed by rotating the phone into landscape. However, what's strange is that this fix seems to be permanent - the issue is reproducible multiple times if the phone is never rotated into landscape, but stops reproducing once it's been in landscape at least once until Chrome is reinstalled.
 

Deleted: Screenshot_20180226-132525.png 344 KB

	Screenshot_20180226-132525.png 344 KB View Download