Opacity of planes in model is not changed

[ZooSpiritWolf]

🐛 on Dev

Steps to reproduce:

1. Login
2. select modelling app
   Expected: I believe the expected behavior should be that you see the existing plane behind the other.
   Actual: Sometimes the plane is visible behind the other plane but othertimes it is not. Was unable affect any change on opacity by clicking on other planes.

Timestamp: 0:00
Video: Loom (https://www.loom.com/share/798beb0969694cbba7b960be522ac35d?sid=fa379deb-5af7-4db1-993c-b1164f22fd8c)

Bug report:
https://app.qawolf.com/zoo/bug-reports/aced5dfc-6b04-424e-ab62-a29a88134635

Affected workflows:
• Validate Variable Name Availability & Remove Variables - https://app.qawolf.com/zoo/workflows/clweyy8kp065v79e089d01kjz
• Inactive for 2 mins - Stream Idle Mode - https://app.qawolf.com/zoo/workflows/clyd2erpw04auw63k2nrf9w4u

If you are aware of this bug you can set the priority to low which will prevent it from causing a run failure.

[Irev-Dev]

I can't remember if I asked you about this @mlfarrell?

The video basically shows that sometimes the XY plane is not visible behind XZ

And sometimes it is

I think this is more of a problem for the QA wolf people than it is us because they rely on screenshots much more than we do.

But obviously we should fix it if we think it's bad for users.

[mlfarrell]

OIT for planes is a known issue in engine somewhere. I'll ref this issue from that or create one if not already.