Premiere Pro CC 2018 effects/Lumetri bug

[acertik]

Since updating to Premiere Pro 2018, I've been experiencing a bug with Lumetri Color.

In certain random projects, I cannot seem to be able to see any changes I am making in the Lumetri Color Panel to my clip, unless I render my clip in the timeline. In other words, I am blindly applying color correction to a clip without being able to see what I'm actually changing, or the effect it's having on my clip, until I render the clip, then it shows me the results of my color correction.

Once my clip is rendered, if I want to make further changes, my color correction will reset back to its default view (as if it had no color correction at all), until I render the clip again in the timeline. Obviously, as someone who uses Lumetri Color a lot, I can't work like this.

I've tried clearing render/cache files, but that seems to have no effect. Once this problem occurs in a certain project, that project file seems to carry this bug with it, even if I reset all my effects and start from scratch, or if I open the same project on a different computer.

I've already submitted a bug report about this. Was just curious if anyone else if having this problem?

[premieregal]

Not sure if this will work. But try exporting your project as a .XML file and opening the .xml back in Premiere Pro in an new project and see if that fixes the bug?

[acertik]

Thanks for that suggestion.

Well, this is very interesting. If I export the sequence as an XML, and try to import that into a blank project, nothing happens! The XML won't import. The "Importing Files..." dialogue box shows up for about a second, but after that, nothing. No import - it's a totally blank project.

However, if I import the same XML into Premiere Pro CC 2017, it works perfectly, so I know the XML is ok.

[Jim_Simon]

2018 has a bug with XML import.

Use the guide below to post the details of the situation.

How To Ask For Help

[francis-crossman]

Things to try . . .

• Trash your preferences (hold down option when you launch Premiere Pro)
• Reinstall Premiere Pro
• Delete render cache (can't hurt to do it again)
• Try different rendering modes: GPU vs software (File>Project Settings>Renderer)
• Enable high-quality playback (wrench menu in the program monitor)
• Set you sequence to maximum bit depth and maximum render quality in the sequence settings

[Kevin-Monahan]

ACertik,

I would try the proxy workflow: Basic Premiere Pro editing workflow

Report back after trying it out.

Thanks,
Kevin

[Adam_Blair-Smith_official]

You can just use the new feature of Premiere that allows you to layer color grades on top of each other for now, that's what I'm doing for a similar bug, but I still hope they can fix it!