Does the same thing happen when you are in the Library module?
The second dialog window that comes up is a warning that the file won't be placed in the Recycle Bin because the volume the image is on doesn't support it. Are those images on an External drive and how is that drive formatted?
It does not happen in Library module, I can browse through images normally, this only happens in Develop Module.
Yes those images are on my NAS, but I've always had the warning dialog since way before the update as the files are on a external device. But the gray/freezing problem is after newest update w/reference view, that Develop module display has been messed up.
I tired to turn off hardware acceleration but it doesn't fix the problem.
Hi there Li.F,
This issue has been acknowledged. Please find more info here: Lightroom: No Image displays in Develop Module after Deletion of Other Images | Photoshop Family Customer Community
The current workaround is to go back to the Library Module before you delete the rejected images. You can do that easily by hitting the G key. Others have reported that reinstalling the app also solves the issue. Please try that and let us know if the issue still occurs.
Please update Lightroom to 6.9/2015.9 version which includes the fix for Lightroom: No Image displays in Develop Module after Deletion of Other Images | Photoshop Family Customer Community