Confirmed
It stop working since 9.5.0
Reproducible behavior on fresh new clean containers, empty databases, default configuration, no changes
docker container mattermost/mattermost-team-edition:9.4.4 - fea3d3c0da1b
Mattermost Team Edition
Mattermost Version: 9.4.4
Database Schema Version: 117
Build Number: 8140906565
Database: postgres
9.4.4 updates interactive message as specified on first post. It works on 9.4.4
docker container mattermost/mattermost-team-edition:9.5.0 - bfd1e3d81e3b
Mattermost Team Edition
Mattermost Version: 9.5.0
Database Schema Version: 119
Build Number: 7743331626
Database: postgres
9.5.0 does NOT update interactive message. It does not work on 9.5.0