Question: Find a recursive assignment?

When trying to load/import/read an MPL file with Maple 2023, I get an error message of "Error, recursive assignment" which only links to a page which states "There is no help page available for this error."

https://www.maplesoft.com/support/help/errors/view.aspx?path=Error,%20recursive%20assignment

Presumably there is an error in the Maple syntax that prevents execution, but I cannot find a way to debug.  Maple Code Editor Diagnostics says "No Errors" but Maple Code Editor Console says "Error: recursive assignment."  The MPL file is 485 lines but I am assuming the error could be anywhere in the file.  Is there any way to fix this?

Update: I found the error by copying just a handful of lines at a time into Maple until the error was reproduced.  It was a typo of just one character out of 16,960 characters.  But this is very frustrating.  Why can't Maple 2023 tell me what line the error is on?  Is there a better way to debug MPL files?