This conversation has been merged. Please reference the main conversation: Lightroom Classic: Zooming very large images shows grey box
Clicking to zoom in at 1:1 view I get a very low res image while Lr is loading:
Once loaded, the image area goes grey - 1:1 image view is not rendered:
Zooming back out to Fit View briefly flashes the low res image, then the image is displayed as normal, like the first screen shot above. Clicking to zoom in again at 1:1, first gives a grey outlined box:
before again showing a grey image area like the third screen shot shown above.
In the Develop module, zooming to 1:1 view works as expected.