Failing to upgrade to latest skuid release

Defect/Issue Description:
After trying (attempted multiple times) to upgrade Skuid release I get an email that i was unsuccessful for the following reason: “The post install script failed.”

This has also happened on two different sandboxes.
One of the sandboxes has been recently upgraded to 14.4.11 without a problem, a month tried to upgrade to 14.4.12.
The other sandbox was refreshed the same day, so attempted to upgrade from 13.0.15 → 14.4.12.

Environment:

  • API Version: v2
  • Release: Chicago
  • Release version: 14.4.11 → 14.4.12
  • Platform: Salesforce