Hi Eric,
There’s a known bug that might be related to what you describe. I suggest you try to see if this flow fixes the issue:
In the problematic breakpoint, set the elements’ scroll behavior back to None. then set it back to Sticky, and enter the value you wish.
That might solve it.
If not, please share a link to your site and also the page in which this occurs, and we can try and have a look and assist.
Thanks