Error Object Required When Copying Sheet

I have a script that creates a bunch of sheets. It was working fine when testing because I was just adding a sheet using worksheets.add, but now I've found out they all need to be created from a template sheet. I set up the template sheet and changed to the worksheets.copy method, but I'm receiving a runtime error "Object Required"

All I want to do is copy the sheet and rename it to the next name in the array (I have an array of sheet names).

Here is the code snippet in question (error line in red):

Code:

If lngX = LBound(arrSheets) Then strAfter = Sheet1.Name Else strAfter = CStr(arrSheets(lngX - 1))
Set WS = Worksheets("TmpSht_Checks").Copy(after:=Sheets(strAfter))
WS.Name = CStr(arrSheets(lngX))

As written, the duplicate sheet IS created...

I also tried the method below, but I get the same result (sheet created (but not named) and the same object required error)

Code:

If lngX = LBound(arrSheets) Then strAfter = Sheet1.Name Else strAfter = CStr(arrSheets(lngX - 1))
Worksheets("TmpSht_Checks").Copy(after:=Sheets(strAfter)).Name = CStr(arrSheets(lngX))