I am experiencing some issues with the automatic generation of thumbnails after upgrading to 8.6.1.4.
The system worked pretty well for the past 2 years but now it stopped working.
If I reset IIS, it works for a while (have not checked if it is related to number of images or just time) then it stops creating the thumbnails.
Have anyone experienced something similar? Any ideea why this could happen?
I worthy mention is that we have not changed anything on the infrastructure after the upgrade. Same server, same windows version, same permissions.
I have noticed however, that after the upgrade the "Resize image" option was checked by default. Until the upgrade I kept active only the "Generate thumbnails" options.
Many thanks for any suggestion.
Adrian