Change order of posts

It should be doing this already. Could you post a link to the page where posts are showing in incorrect order?

This is the page: https://soulide.nl/category/agenda-nieuws/?future=false

I hid the dates with css, but you can still see them in the source.

Do you have another plugin or theme function supporting future posts or events? It may be interfering with the Future plugin. The ?future=false parameter on that page should make it so those posts don’t even appear.

These are the plugins I have installed: https://i.imgur.com/RbDuYoL.jpg
I did experiment with another future post plugin, but I removed that one so it should not interfere. I alse removed a cache plugin and all the cache for now.

One thing though: these posts have been renamed in the functions.php by he/she who originally created this site (I took over): https://i.imgur.com/Yvs9jjl.jpg

That doesn’t seem to make a difference, but I thought I’d mention it anyhow.

I removed the category post order, but that didn’t help.
The same with the CMS tree plugin.

There must be something in your theme files that allows posts with future dates to be published, as opposed to scheduled. In the case of the parameter ?future=true, your category archives will show posts in the correct date order, but it will also only pending posts. Perhaps you can check to see if those posts are already marked as published. If so, look through your theme files and see if this function is called anywhere:

wp_publish_post

Another thought: since it looks like your theme already has support for future posts, you might want to disable my plugin (unless you like its calendar features) and just use ?order=ASC on that category.

Thanks for that suggestion! ?? I disabled your plugin in this case and added that parameter and that works fine!

Glad to hear that worked for you!