[sync] plugin returning some color tokens as "null"

[kaylin-index]

Steps to reproduce

Steps:

1. Start with the MUI Figma design file v6.1.0
2. In local variables, copy-paste the "grey" colour tokens from the "material/colors" variable collection to the "palette" collection
3. Delete the "material/colors" collection
4. Double-click the "grey" group title and rename to "common/grey". This will group it under the existing "common" group.
5. In the left nav of the local variables window, drag the "grey" group out of the "common" group
6. Run the Material UI Sync Figma plugin to generate a theme file

Current behavior

All my grey tokens are exporting as "null" in the generated JSON file. I've attached the JSON theme file, and a screenshot of the impacted colours from the local variables window in Figma.
theme.json

Expected behavior

All colour tokens are exported properly

Context

I moved the location of the grey colours around several times. Not sure if this is what caused the issue.

• Previously the grey colours were in the default "material/colors" variable collection but I wanted to consolidate my colours so I moved them into the "palette" collection. Moved via copy-paste.
• Then I grouped them under "common" with the black and white colours.
• Then decided to take them out of the "common" group and just have them in their own folder to better match the structure I saw in the default theme viewer.

Your environment

Software	Version
Design file version	v6.1.0
Design tool	Figma v124.6.5
etc.

Search keywords: scope: sync, palette, figma, null, tokens