Hello. I'm unexpectedly getting an Index Out of Bounds Error on a ListRemove action. 

Here are screenshots of my setup - (sorry, cannot share OML due to NDA):

2 tables: "I" and "S"; each table is populated by a List local variable:  "I-List" and  "S-List" 

Each var is populated by a ListAppend Action: 

Here are the tables summarizing the variables: 

Here are the actions allowing a user to delete a record row in each respective table on double click of the trash icon in the row: 

I am only getting an Index out of bounds error when user deletes a value from the "S-table". This error appears regardless of which row the user is deleting from the table or how many records are in it.

There is only one difference I am aware of between the two variables: The I-List variable isn't exclusively populated by the I-Append action. There are other actions that feed rows to the list. The S-List variable is solely populated by that one S-Append action. 

Can anyone figure out what is producing the Index Out of Bounds error? I thought the error indicates at runtime that you have an empty list. But the presence of rows on the S- table shows that the list isn't empty.

I'd appreciate your extra eyes on this. Thanks!