Please confirm on the following:
- Check and confirm if activity syncs as expected to the Default workspace. This is required so that we can segregate if the issue is occurring only with custom workspace or an issue with Default as well.
The sync to custom workspace is only supported for Experience Fragments as of now. All other activities created in AEM (A/B test etc.) are only synced to default workspace, use of custom workspace is not supported in this scenario as of now.