I’m not sure it it’s a bug or a limitation.
So when you have shadows up against the edge of a repeating group, the shadow does not go through. This is different behavior compared to normal groups.
Not a bug. It’s the container that’s not wide enough.
Yeah but only repeater groups act like this, normal groups don’t block it.
Just wrap the RG in a standard group then. Drop your shadows from the standard group.
(To easily wrap any element in a group, right click it and Add to Group. Tip: Watch your responsive settings on the new group — which will not inherit any of those from its child, of course.)
None of the above implies that what you’re observing isn’t a bug. Just noting an easy workaround.