Issue
Extend Resource Plan UI Action is not adding hours properly
Cause
This is happening to the "ResourceGrideAllocationEditor" Script Include not being the correct OOB version.
Resolution
Resolution Steps:
1. Navigate to System Definition > Script Includes
2. In the "Name" column search for "ResourceGrideAllocationEditor" and go to the record
3. In the Versions related list, Right-Click the most recent record with the Source of "System Upgrades: glide-paris..."
4. Select "Revert to this version"
5. Select OK when prompted