If that is not working try going into your Gimp user profile C:\Users\"yourname"\AppData\Roaming\GIMP\2.10\
Look for the file parasiterc which holds the saved default values and delete it. Maybe something stuck in there.
Next time you export to a jpg set the quality and Save the Defaults Gimp will write a new parasiterc on exit. That works for me same as previous posts.
You can look at the file in a text editor, I do not understand the entries but by comparison, the first two entries in the long string govern quality.
example
Might / might not make a difference.
Look for the file parasiterc which holds the saved default values and delete it. Maybe something stuck in there.
Next time you export to a jpg set the quality and Save the Defaults Gimp will write a new parasiterc on exit. That works for me same as previous posts.
You can look at the file in a text editor, I do not understand the entries but by comparison, the first two entries in the long string govern quality.
example
Code:
saved quality 85
(parasite "jpeg-save-defaults" 1 46
"\70\65\56\................\60")
saved quality 90
(parasite "jpeg-save-defaults" 1 46
"\71\60\56.................\60")
saved quality 95
(parasite "jpeg-save-defaults" 1 46
"\71\65\56\................\60")Might / might not make a difference.