Please be so kind as to read my full post before responding.
Thank you for your consideration.
I've encountered a Dynamics 365/CDS (?) bug with the customized order of OptionSets being completely ignored upon saving in two of our Dynamics/CDS database Instances, version 126.96.36.19931.
(Via web.powerapps.com, changing the order is only possible via "Switch to classic" ...)
I've posted about this in the Dynamics forums as well
but I am reposting here as well to increase visibility in hopes that someone who has a solution for this might read it.
Here's a converted gif from a screengrab (Windows + Alt + R) of one unsuccesful order changing attempt:
Thanks for trying to help.
How does publishing correct anything which was already wrong after saving?
I didn't forget publishing.
Here, have another screen grab, this time showing publishing and reloading as well: