Play Button not visible/disappeared on RHEL 8.7 in Unity 2021.3.16f1

Unity Engine
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1

Hi,

I’ve recently installed Unity 2021.3.16f1 on RHEL 8.7 and somehow, the Play/pause button has disappeared from the top of the Scene. It was there briefly during an early phase (I think when 2021.3.15f1 was installed), but has now since disappeared.

When you guess where the button might be and click it, the screen seems to transition to play mode (but hard to confirm without seeing the screen)

Things attempted without success:

  • closed/reopened Unity
  • created a new project
  • uninstalled and reinstalled Unity 2021.3.16f1 and Unity 2021.3.15f1
  • complete unity hub uninstall and reinstall
  • rebooted the computer
  • checked the Edit > Project Settings > Editor > Enter Play Mode

When I open the same project on another computer, the play mode buttons appear and work.

I’ve searched the forums, and I can only see references to ProBuilder back in Unity 4.

8711241--1177134--upload_2023-1-6_16-52-48.png
8711241--1177134--upload_2023-1-6_16-52-48.png1680×988 111 KB

What do you advise? Thank you!

2

is this wayland or x11?

3

Hi, i have the same trouble,
I tried versions 2022.2.12f1 and 2021.3.21f1.
I have a Ubuntu 22.04 and my graphic is X11.
Thanks

4

could you help us to file a bug? I can take a look into it.

5

Hi, how may i help???

6

https://support.unity.com/hc/en-us/articles/206336985-How-do-I-submit-a-bug-report-#:~:text=You%20can%20submit%20a%20bug%20report%20in%20the%20Hub%20by,complete%20all%20other%20fields%20listed.

A bug report would help us to reproduce this issue consistently. Thanks a lot!

7

Same issue on test version of Debian Trixie (v13) and KDE Plasma/Wayland, Unity 2022.3.21f1.

8

With Unity 2022.3 you can use the UI Toolkit debugger to look at what’s going on inside the toolbar. That would certainly be useful in figuring out what’s causing the issue. Personally I never had it, neither with 2021 or 2022, neither with X11 or Wayland.