Activities not syncing

• Plugin version: 6.15.0 Stable
• Chrome version: 78.0.3904.108 (Official Build) (64-bit)
• OS version: Windows 10

Steps to reproduce:

1. Fresh installation of the Elevate app plugin
2. Started sync
3. Sync founds 249 activities and processed them all
4. No activities are shown.
5. selected option "Clear and re-sync activites"
6. finds the same 249 activities and processes them 7 . no activities show up
7. selected "clear synced activites" and sync again
8. same sad results

after a few tries, I got blocked for the day (image bellow)

该提问来源于开源项目：thomaschampagne/elevate