FollowJointTrajectoryActionGoal Publisher does not register properly

[GregoryLeMasurier]

FollowJointTrajectoryActionGoal publishers do not seem to register properly. When we rostopic info the topic, we can see the connection. No messages go through on rostopic echo.

Please see the images below for console output.
When registering the publisher:

When killing the project:

Script used to reproduce the error:
https://gist.github.com/GregoryLeMasurier/9d2b5f72fed454e0a4296d7188435a97

[GregoryLeMasurier]

Issue was also noticed on GripperCommandActionGoal