This issue will be resolved in a hotfix release tonight.
Posted 6 months ago. Mar 29, 2018 - 10:15 CDT
Missing supported file types for document/image/media manager which could generate errors uploading a file 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-32276.
Posted 6 months ago. Mar 28, 2018 - 09:56 CDT
This incident affected: Production Sites (US Production Sites, Canadian Production Sites, Australian Production Sites) and In Application Issues - Severity 1 Defects.