Progress bar crashes when updated from swift file that is not it's viewController

I have a file in Swift that holds all my queries. And when saving a record with saveOperation.perRecordProgressBlock this file call ChatView view controller and updates the progressBarUpdate function.

Co far I can get the print within progressBarUpdate to print the progress just fine. But when I get to update progressBarMessage.setProgress(value!, animated: true) the application just crash with the following error: fatal error: unexpectedly found nil while unwrapping an Optional value

If I try to run progressBarMessage.setProgress(value!, animated: true) through viewDidLoad it updates the progress bar fine, no error. Which means the outlet is working just fine.

So I guess my issue is something I cannot understand when calling progressBarUpdate from my Queries.swift file

@ my Queries.swift file

 saveOperation.perRecordProgressBlock = { (recordID, progress) -> Void in
       print("... perRecordProgressBlock (Float(progress))")
       var chatView = ChatView()
       chatView.progressBarUpdate(Float(progress))
 }

@ ChatView view controller

func progressBarUpdate(value: Float) 
{
    print(".... perRecordProgressBlock - CHAT VIEW(value)")
    if (value as? Float) != nil 
        {
        progressBarMessage.setProgress(value, animated: true)
        }
}