Does adding overflow: hidden; to the container’s custom CSS work?
Looks like you have a scrollcontainer on both your layout and on the page itself. It's probably best to keep the one in the layout and remove the one on the page.
I have exactly same problem , and I didn’t put second scroll container.
Have you found the solution?
If the standard scroll container is not a good fit, you can give a try to my widget
Scroll Dynamic Height Container
It can be used in many columns/rows of layouts in the same page.
You can use custom CSS to adjust its styling. You may want to set the overflow property to "hidden" or make adjustments to the height or width of the element.
.your-problematic-element { overflow: hidden; }
Add this CSS to a custom stylesheet in your Mendix app.