Maybe you could provide some additional information about the issue you are having. Is it on the desktop or mobile app? Is it on live site or inside the editor? There is no possibility to edit anymore or you can edit but it does not apply after you do it? As the functionality was not changed and should be working like it used to.
The category header image is also used for the category thumbnail. So for instance if you enable the category header -> set the image -> disable category header = thumbnail image will remain but the category header image will not be shown. And you will not be able to configure it until you enable the header. This is a configuration flaw that we will try to improve and make it more understandable. But for temporary workaround you need to enable the header (like in the picture above) -> set the image you want -> disable the category header.
Hello Leon,
Maybe you could provide some additional information about the issue you are having. Is it on the desktop or mobile app? Is it on live site or inside the editor? There is no possibility to edit anymore or you can edit but it does not apply after you do it? As the functionality was not changed and should be working like it used to.
This is desktop and in editor. Basically the feature to change thumbnail is gone but the pre uploaded images still remain displayed:
The design section for categories is controlled by the header toggle in the Layout -> Post Page -> Show header
So please check if this setting is enabled. And if toggling it on and off has an affect on the section that is missing.
I am sorry I meant the thumbnail for the categories not the header
The category header image is also used for the category thumbnail. So for instance if you enable the category header -> set the image -> disable category header = thumbnail image will remain but the category header image will not be shown. And you will not be able to configure it until you enable the header. This is a configuration flaw that we will try to improve and make it more understandable. But for temporary workaround you need to enable the header (like in the picture above) -> set the image you want -> disable the category header.