Hello,
I have submitted a bug request with bubble for this but I wanted to reach out to the community to see if others have been experiencing this issue or have workarounds.
When using the new Responsive Engine Beta we see that repeating groups are broken. If there are only a few elements in the list and you do not scroll then the page shows up fine. But once you start scrolling in a repeating group the page starts growing and all the elements on the page stretch out as each element is a percentage of the page. So it seems like the page height as a whole increases as bubble loads in data for the repeating group.
This only occurs if we are using the responsive engine. The repeating group is set to have a height of a specific percentage (35% of page). Within a repeating group, if the height of the cell is set to a percentage then this issue occurs. The issue isn’t as pronounced when the height is set to a specific px but the issue still occurs (the page height still increases in this situation, but isn’t laggy like when using a percentage instead). This occurs on all environments, but the main environment that has more annoying impact is mobile.