Peter,
hm - this is quite unusual. Could you try the following?
1. Delete or rename your ~/.shotwell directory.
2. Start Shotwell like this:
% SHOTWELL_LOG=1 shotwell
3. Import a few photos. Do their thumbnails appear gray this time?
4. Exit Shotwell.
5. Attach the file ~/.cache/shotwell/shotwell.log to this bug report.
Peter,
hm - this is quite unusual. Could you try the following?
1. Delete or rename your ~/.shotwell directory.
2. Start Shotwell like this:
% SHOTWELL_LOG=1 shotwell
3. Import a few photos. Do their thumbnails appear gray this time?
4. Exit Shotwell.
5. Attach the file ~/.cache/ shotwell/ shotwell. log to this bug report.