Block-level no longer automatically working with chained image backups. Please help! Not sure if this has been sufficiently addressed since the new scheduling options were implemented but what I found works using a similar Local to Cloud image chain sequence setup was this.
Create normal local image based backup plan with incremental and full options scheduled. Do not enable chain sequence.
Create cloud image backup plan with incremental and full option scheduled explicitly.
Let the backups complete the first full cloud image backup automatically. Once the first cloud image is complete, remove the daily occurrence for the cloud plan, then setup your chain sequence from local to cloud.
This has worked reliably for me for new configurations, editing the config file seems hit or miss, especially since the changes need to be approved next time GUI is opened after a config file is edited.