This issue is scheduled to be resolved in a hotfix release tonight, 10/12/2017.
Posted 5 months ago. Oct 12, 2017 - 07:21 CDT
Forms with "Forced Navigation" enabled AND "Form exit option - Show a finish page with a custom button" error on submission has been identified as a Severity 1 Blocker Defect and will be reviewed and fixed by our development team as soon as possible. The ticket number for your reference is ENC-30073.
Posted 5 months ago. Oct 11, 2017 - 12:41 CDT
This incident affected: In Application Issues - Severity 1 Defects.