Just to make sure, you are: launching app studio, loading your custom layer, going to the panel card with the grid, and then clicking the elipses and choosing to personalize the columns yeah?
Or are you going into the grid properties and deleting columns/adding them?
I had to log out and back in for it to apply.
Tried from both recent and menu search, no change.
Logged out, logged back in, worked.
I have tried thatā¦ What version, relesae, and patch are you on?
No.
I opened the app, opened app studio, created or selected the layer I wanted, chose details, dragged and dropped the columns directly, saved and published.
I had to go to menu maintenance and apply the customization because I previously did not have one.
It did not work until I logged back out and back in though.
I did the personalization before though, and it did work. I havenāt tried it on this screen we are testing now though.
2022.2.8
Yeah hereās the thing though, not only do I want to re-order them, I would also like to add and remove certain columns.
I keep thinking I need to do it on the personalization tab, but I read something from @hmwillett that said we should do add or remove columns in the grid properties (add/remove). That post may have been related to a custom grid though, not a base grid.
I am confused regardless.
So how would you add a column if you were going to do that? Grid model or personalization?
If the column you want to show is already in the dataset, you should be fine to do it using a personalization on the grid within app studio.
If itās an added column, you would likely need to add it using the grid model.
It appears the rules have changed, so Iām not sure of the preferred method anymore.
Depends on the use case. Personalization looks like it can unhide for you.
In customization, it would be the grid model, columns. (& ColumnsHidden?)
Thatās why I am so confused. All the columns are already in the dataset. I can see them in the personalization view and have the option to hide or unhide them. I try to do that while in app studio and I see my grid update accordingly, but it never sticks after publishing or when I preview.
Let me try again from base using the personalization methodā¦
Seeāthis is where theyāre going to confuse people because now you can āpersonalizeā columns within a grid IN an App Studio layer, essentially making it a customization, not a personalization. 
Yeah, all I know is I want to hide/unhide columns that are present in the dataview AND I would like to re-order the grid.
Wasnāt it the same way in classic though, you would launch the form in developer mode, personalize it then open customization screen and save the customization so that your personalization would become part of the customization?
Mmm, yes and no. In classic, if developer mode is disabled, under Tools, thereās an option called āPersonalizationā which would allow the user to modify their screen only.
When dev mode is turned on, that option disappears and it becomes āCustomizationā, though you modify the column order in much the same way you would as if you were personalizing it.
Honestly, I think they should change what itās called. āPersonalizationsā are, wellā¦ personalāfor that user. I donāt want to be in App Studio customizing a layer for all and have to click on something called āPersonalize Columnsā. Maybe itās all semantics.
Maybe itās Maybelline. 
Yup, thatās how it worked in Classic.
This is Kinetic, itās Cover Girl at best.
Iād take Cover Girl over Maybelline any day. 
I guess I should of asked Google which of the two were higher quality. Lord knows I have no knowledge of the subject. 
Youād get 50 votes for each.
I think makeup preference is a pretty personal choice.
Thatās not how you were supposed to do it in classic though.
You were supposed to customize, select the grid, then modify the column list.
