I keep having this issue with different objects and on different scores.
As an example, I am working on a new score. I have not put any user objects at the time of the issue. I tried to put in a Melismatic object and immediately received an Object Suspended notification.
I tried adding other objects, and they worked. In this case, it was the PageText object.
Once I receive the notification, the same object is suspended in previously written scores.
I would appreciate any help.
Perhaps the Melismatic object is crashing because there is something in your score that it doesn't like. If you open a previous score that uses the object and then press F9, it should reset the app. But you should close the score that caused the original issue before you try this.