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UMG ScrollBox scroll into view broke after 4.17

When trying to scroll a widget into view it seems like the scroll box calculates the distance that should be scrolled from the initial position instead of where I'm currently at.

Here are a few examles: Trying to scroll widgets into view that are visible on startup has no effect. Trying to scroll to a widget that ends 1cm below the scroll box creates a 1 cm downward movement, even if that widget is already fully visible.

I made a quick video of the issue in action. Hovering over any widget will tell the scrollbox to scroll it into view. As you can see, any widget in the 5th row will always create a small scroll downwards, even after they are visible. The widgets below the 5th row will scroll so much, that the cursor goes over the widget below them and cause us to scroll to the bottom.

I'm fairly certain I never had this issue in 4.16. Does anyone know how to go back to the proper behaviour?

Product Version: UE 4.17
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asked Sep 27 '17 at 06:02 PM in Using UE4

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avatar image EndersGame0327 Oct 31 '18 at 10:30 AM

Verified - bump! 4.18 - you also can't set the GlobalDefaultScrollAmmount in SlateConstants.h or whatever. Its 32 by default, looks as if it should be console editable - but isn't =/

This is crazy Epic, any designer should be able to set how far the scroll bar scrolls in the UMG Widget Editor. This wouldn't be so bad if the work arounds' weren't also broken.

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