Modifying graticules in Layout not working

[mhnewton]

I am trying to create graticules for an inset map, and although I can insert the generic "Black Horizontal Label Graticule", I cannot manually adjust the components (Labels, ticks, and gridlines) after unchecking the automatically adjust button.

When I try to change the intervals it doesn't reflect the change in the map. I've tried multiple computers, creating a new layout, new project, new data, and updating ArcPro from 2.8 to 2.9... Sometimes when I remove the gridlines and secondary ticks they are removed from the map but not every time (see screenshot)

Any suggestions? could it be a bug or am I just missing something?

I attached a screenshot showing what it looks like

Cheers

[AubriKinghorn]

It looks like you might have multiple grids on your layout, or a graticule layer in your map which can make it appear confusing. Also in the first image you are getting a grid warning saying that your interval is so small it won't draw correctly which could be part of the problem. There might be a bug, or it might just be a complicated setup. Tech support should be able to troubleshoot it if you are able to reach out to them here: https://support.esri.com/en/contact-tech-support

[MaryJoWatson]

Did you ever figure this out? I am having the same issue! None of the changes I make to the graticule update on the layout. 

[AubriKinghorn]

You might be running into this issue: https://support.esri.com/en/bugs/nimbus/QlVHLTAwMDE0MzkyMQ== 

Removing the extent indicator before adjusting the grid, then adding it back after, is a workaround while this gets fixed.

[IlkaIllers1]

Thank you @AubriKinghorn, your post just saved me from a lot of frustration!!! Never would have gotten there on my own.