Bug Scroll position resets when using slider dragger in 2022.1

Unity 2022.1 has a bug that resets ScrollView position. To reproduce this issue place a Slider inside a ScrollView in a position, that requires scrolling down. When sliders dragger is used to change slider value, ScrollView scroll position resets. This is really annoying.

I've submitted a bug report, but does anyone know a workaround for this issue? Maybe there is a simple fix.

 

I also came across this bug today. It is clearly reproducable in Unity 2021.3.6.

In my project it also occurs in other situations for example sometimes when clicking buttons (but not always) or always when draging/moving VisualElements.

Found no workaround so far.

 

I think we may be seeing symptoms of the same behavior:
https://forum.unity.com/threads/tex...resetting-parent-scrollview-position.1313085/

 

This bug is forcing us to downgrade our project to Unity 2021.3, because all scrollbars exhibit this behavior. To reproduce:
1. Place any input such as a slider, an input field or a button inside a scroll view.
2. Run the project.
3. Scroll down.
4. Click and drag any of the elements in the scroll view.

As a result the scroll will jump up to zero.

What it means in practice is that for example in our game settings panel, when someone scrolls down to volume controls and drags a volume slider, the settings panel scrolls up. So the settings panel is currently unusable.

@benoitd_unity This appears to be a critical bug. Is there any chance you would be able to release a hotfix soon?

 

I can confirm it as well.

@pawelduda , could you please share bug report reference, so we could follow it?

 

Sadly I didn't receive one yet. As soon as Unity provide me with one, I will post it here.

 

That is because I reported it a while ago

https://issuetracker.unity3d.com/is...hlighting-text-at-the-bottom-of-the-textfield

 

Please, please say you found a workaround?

 

No I am stuck on 2022.1.6 because of this bug.

 

This major bug is still reproducable in the latest Unity LTS release 2021.3.9. I created a bug report. Sadly it seems this bug has to be reported for every Unity version separately to get fixed.

 

@HugoBD-Unity @benoitd_unity Is there any progress on backporting those fixes to 2022.1?

Our game is stuck on Unity 2022.1.6 and we haven't been able to upgrade since June because the scroll bug makes all of UI Toolkit unusable in any of the newer versions. Because of that we are also stuck with multiple other bugs that were already fixed in July and August.

 

For the record, the bug does not apply only to text fields. It also affects other elements, for example sliders. So in practice any game that uses UI Toolkit and scrollbars is unable to upgrade beyond 2022.1.6.

 

@HugoBD-Unity
Is there any chance this bug will be fixed soon - seems to be quite a critical one?
It blocks us from migrating to any newer version of Unity (we're stuck at 2021.1.6), because it breaks essential UI interaction and makes the game unplayable.

 

@HugoBD-Unity @benoitd_unity
We have the same problem. This bug is a major blocker for our progress.

 

Here is the official issue tracker linkt to the bug:
https://issuetracker.unity3d.com/is...resets-when-sliders-are-scrolled-in-play-mode

 

Hi @HugoBD-Unity , any idea when that specific bug with sliders will be fixed and backported?

 

Just wanted to chime in and say that this is also blocking our release after our recent upgrade from 2021 to 2022. A backport to at least 2022.2 as soon as possible would be greatly appreciated.

 

Has someone found a workaround for this bug? It seems that the fix is still not rolled out

 

Hi! Any info on that one? Will it land in 2022.1?
https://issuetracker.unity3d.com/is...resets-when-sliders-are-scrolled-in-play-mode

 

@unity_griendeau this is a relief, thank you!

 

What about Unity 2021.3 LTS? You will backport the fix to that version, too, don't you?

 

When we can expect this fix in Unity 2021 LTS?

 

For those waiting for 2022.2 fix:
https://unity3d.com/unity/beta/2022.2.0b10

 

It would be very interesting for us if this could be backported to 2022.1

 

Finally the bug has also been fixed in Unity 2021.3.13:

https://unity3d.com/unity/whats-new/2021.3.13

Tested it in my project and can confirm the fix.

 

We just tested 2022.1.22f1 and the bug appears to be gone! We can finally upgrade Unity for the first time since June.

 

Fixed on 2022.0

 

Any idea on when is going to be fixed on the current LTS? I imagine it should be backported.

EDIT: Solved in the latest LTS 2021.3.16f1

 

Any news on it being backported to 2022.1. and 2022.2. ?

As an Asset Developer supporting 2021.2+ telling my customers to upgrade their projects is not an option (they don't). Scroll views resetting if a slider is used is not a minor bug. Please backport this.

 

Thank you for the info.
2021.2 works but for example 2022.2.16 doesn't. According to your infos it shouldn't, so that's fine from a logical standpoint). I guess I'll have to educate users on which minor version to use (upgrade).

Still not a nice scenario because typically asset devs are blamed if anything does not work. And the general expectation is that if it works in the last release of a lower major version (2021 in this case) then people tend to expect it to work in all subsequent major versions. Which is logical I think. It's hard to communicate this to users.

 

I

I am still seeing this bug in 2021.3.2f1. Any update on a work around/time frame for a bug fix for this version?

Edit: Also seeing this in 2021.23f1 which is the latest version of 2021.3

 

The problem is in 2021.3.11f1
I can't scroll dragging the game objects with attached slider component that are inside the content in play mode, but can scroll dragging the content not touching game objects inside it.

 

As stated in a post above the bug has been fixed in Unity 2021.3.13, so it is highly recommended to update to the latest Unity 2021.3 version which currently is 2021.3.28.

 

Thank you.