PROBLEM
When I process a large number of files, only the first image is processed.
Can I apply adjustments to a large number of images at one time?
SOLUTION
If you cannot process the entire batch and only the first selected image is processed, then Edit All Selected Variants has been disabled. You can enable this feature again from the Image menu (Edit menu in Capture One 11 and older).
If you have selected multiple variants but have not enabled the All Selected Variants option, you will get a warning message. Additionally, check the Warning tab in Capture One Preferences to verify whether this type of warning is check-marked or not.
Alternatively, navigate to the upper-right corner and click on the icon as shown below (the icon is orange when enabled).
NOTE: When the feature Edit All Selected Variants is enabled, the styles, presets, rating, color tags, and other copied adjustments are applied to the batches of images. If you need to change this behavior and apply changes only to certain images, you should disable the Edit All Selected Variants option.