Intermittent failing of mask tracking in Premiere

[HobsonCurtis]

Hello world

I'm halfway through grading a project and I'm need to use an track a lot of masks in Lumetri to fix the shots.

First half worked fine - around 50 shots no problem - copying and pasting a Lumetri effect with mask from clip to clip and adjusting and tracking.

Today , either the tracker is greyed out, or I can't adjust the mask, or the tracker launches but makes no progress.

I'm really, really stuck without this, so I'd appreciate any bright ideas from out there.  Hope you're all having a better day than I am!

Premiere 24.00 (Build 58)

2019 Retina iMac  / 8 x 3.6 i9 / Radeon Pro Vega 48 8GB

1080p25 timeline

Yesterday - 4k p25 footage from Sony Venice MXF AVC

Today - 4k p25 footage from A7S3 MP4 H264

Media on 1200 MB/s SSD via TB

I've tried restarting, trashing prefs, working on bare clips all to no avail...

H E L P!

James

[Carlos Ziade]

backup, save another version of your project..

try to reset the preferences

[HobsonCurtis]

Hey Carlos

Thanks for taking the time - tried your suggestion, but it doesn't seem to have made a difference.

It happens more with the A7 footage, but still happens with the Venice footage a little.

It happens less with the proxies, but still happens.

I wonder whether my iMac is getting a bit old for this...

Cheers!

James

[Peru Bob]

Delete the Media Cache and Media Cache files:
https://community.adobe.com/t5/premiere-pro/faq-how-to-clear-your-media-cache-in-30-seconds-in-premi...

If that doesn't work, try resetting the preferences:
https://community.adobe.com/t5/premiere-pro/faq-how-to-reset-trash-preferences-in-premiere-pro/td-p/...

If that doesn't work, try resetting the Workspaces:
Reset a workspace
Reset the current workspace to return to its original, saved layout of panels.
1. Do one of the following:
• Click the Workspace menu icon and select Reset to Saved Layout.
• Choose Window > Workspace > Reset to Saved Layout.
from here:
https://helpx.adobe.com/premiere-pro/using/workspaces.html

If that doesn't work, try Preferences > Audio Hardware and set Input to None.

If that doesn't work, try creating a new project and import the old one into it.