I updated Forms to version 9.1.1 on Friday morning and had no issues all day. I start back on Monday and all seemed fine until I tried to access the Process Modeler. The canvas is blank, my existing model is gone and I'm unable to drag new events, tasks, etc. to the canvas.
I tested the process and everything still works as it should but I am still in development and further edits are required.
I've tried the form in Firefox, Chrome and IE with the same results, no process modeler. Several other forms I've been working on are OK. I also tried copying the process but the issue remains on the copied version.
Any suggestions on what could have caused this and if there is a solution?