"Corona color correct" curves buggy in Corona 5.

[JoachimArt]

I don't know if this is because I have a 4K screen, but the curves editor in Corona 5 is very buggy, and it was not like this before. If I try to drag the right and left point far on the curveeditor they suddenly disappear or end up outside the editing field and its impossible to tweak it. It happens all the time and becomes very frustrating.

[Ink Visual]

I can confirm it on our end too. I was about to to prepare bug report regarding this issue but got busy with office work.
Here's the video showing how the bug looks like:

[rowmanns]

Hi,

Which version of Max are you guys using?

Thanks,

Rowan

[JoachimArt]

I'm using 3ds Max 2020.3

[Ink Visual]

I'm using Max 2020.2, but we had similar issue on another workstation with Max 2019. Both are running on Windows 10.

[rowmanns]

Hi,

Thanks, we'll take a look at it.

Rowan

(Internal ID=441491970)

[rowmanns]

Hi Guys,

What are your Windows scaling values set to?

Thanks,

Rowan

[JoachimArt]

Do you mean as in windows settings not max ? like Windows ui Scaling?

[rowmanns]

Hi,

Yeah I do, under Windows display settings. I think in Windows 10 it's called "Make everything bigger".

Thanks,

Rowan

[JoachimArt]

Yeah mine is set to recommended (200% larger) because I have a 4K screen.

[rowmanns]

Hi,

I've just tested this, and then tested it again because I couldn't quite believe it...

It seems that the curves editor behaves like this only when it is plugged into the 3ds Max composite map. It doesn't appear to happen with other maps.

Windows scaling was my first suspicion but it doesn't seem to have any effect.

I'll send this onto the devs so we can figure out what is going on.

Thanks,

Rowan

[Ink Visual]

Hi rowmanns,
Thanks for looking into this.
In my case scaling is set to 100%, I use both 2k and 4k screens so I don't think it has anything to do with the issue.

[rowmanns]

Fixed in v9