Scrollbox offset value is inconsistent

I am currently implementing a multiplayer text chat system using a scrollbox. What I am trying to do is have the scrollbox auto-scroll to the bottom when a new message is posted in the chat, but only if the user is already scrolled all the way down (or within 5 scroll units), I am determining this by comparing the scroll offset with the desired size. The problem is that if the user scrolls down all the way using the scroll wheel, the scroll offset will only reach a value that is around the desired size - 200, while if they scroll down by dragging the scroll bar with their mouse, the scroll offset will reach a value of around the desired size - 1. This means that my system works fine if

http://puu.sh/jWSjX/3a03b4b445.png

As you can see in the picture, I am printing the desired size and the scroll offset every frame. What I am doing to test this is adding a bunch of children to my scroll box until a scroll bar shows up, and then testing. I am scrolling down all the way with my scroll wheel and taking note of my printed offset, now I am scrolling down by dragging the scroll bar, and noting down my value. These two values are different for me, which causes a problem. I was able to reproduce this in both 4.8 and 4.9, I am really hoping that this will be fixed soon, are there any other workarounds to get a value of the scroll position?

Hello Jamendxman3,

I was able to reproduce this issue on our end. I have written up a report (UE-20676 ) and I have submitted it to the developers for further consideration. I will provide updates with any pertinent information as it becomes available. Thank you for your time and information.

Make it a great day

Any progress on this? I found this bug report but it looks like he never got a full answer.

I’ve been grappling with this all week, and it looks like I need to cut a feature / redesign part of the game all because of an inability to determine the “true” scroll offset with Blueprint.

That’s a disappointing feeling : | hopefully this receives some attention

Hello ,

I went ahead and double checked on this issue for you. It appears that this issues status has not been updated to fixed as of yet. However, I will be sure to bump up the community interest for this issue. I do not currently have a workaround for this issue.

Yes, that would be awesome if you could bump up the interest. I was wanting to add a new feature to my project today, but this bug is consistently preventing me from doing certain things.