TypeError: Backbone is undefined

Hi all

With Jira 9.12.x, the custom plugins are breaking on the UI side with this error
TypeError: Backbone is undefined

I understand that Backbone is no longer available. Can someone please advise how to overcome this issus

Thanking you in advance

I’m having the same issue. Commenting here for better reach and visibility. I’ll also chime in here if I’m able to resolve the problem.