[Excel for Mac] Checkboxes causing crash when referenced

[gravanoc]

I have a situation where this code breaks Excel:

Sub ArchiveSheet()
    Dim chkBox As CheckBox
    Dim wks As Worksheet
    Dim rngArchive As Range
    Dim rngMessage As Range
    Dim shtNo As Long, i  As Long
    Dim defVal(0 To 2) As Variant
 
    Call EventStop

    Set wks = ActiveSheet
    Set chkBox = wks.CheckBoxes(Application.Caller)  ' Crashes to desktop here
    . . . more code

It was prior to the 3rd crash that I identified which line of code was responsible, setting a variable referencing a form checkbox that has the above macro assigned to it. Normally,
this is fine on Windows Excel. I looked up Ron de Bruin's macexcel.com website, and an article on shapes infers that the Checkboxes collection is usable, so perhaps something else is wrong?
The other possibility is that Application.Caller is causing the problem. Any ideas?

Edit: changed the Dim chkBox as Object to "As CheckBox", since that is what it said when the crash happened.

 

[Flaiban]

Try this alteration :

Set chkBox = wks.CheckBoxes(Application.Caller).Name