NOR

I checked again and have to correct myself. It is still NOT working. Metadata are still being deleted. My previous positive result was triggered by the fact that I still had cjpegli disabled in the INI-File.

Just want to confirm that the new "cjpegli.exe" available for Plugins32 and Plugins64 has solved the problem. So metadata a kept even with lossy compression enabled. Just download and copy to the respective Plugins-Folder. Thanks for taking care of this issue! https://sourceforge.net/p/nikkhokkho/code/1831/

@James Pous: Missing Metadata are e.g. rating, GPS-coordinates, location, keywords etc. - almost everything is gone after optimization. If you still use the 32Bit-Version or if your are on V16.60 (or lower) than this problem does not occur. It only happens with 64Bit V16.70 and newer. As Nikkho explained it is probably a matter of the new 64Bit plugins. @Nikkoh: I have not had much time to try out all plugins. I tried disabling the plugins that contain the word "JPG" in their filenames for I assume...

Oh, how can do that? I just tried the 32-Bit version and the problem does not occur with it. So it is only a matter of the 64-Bit version

Just tried new version 16.80. And as with 16.70 it still keeps deleting all metadat of JPG-Files, though option do keep metadat is set. 16.60 ist the last version that does not have this bug.