Parsing a csv in a workflow

Hi retoolers:
I have built a workflow that reads a csv file stored in retool file storage and updates a retool db table with the data. I have it working fine for smaller files. But it breaks when the file gets above 1MB.
The problem happens just getting contents of the file using Retool's built-in file handlers.

Any best practices from the community for handling csv files that are larger than a few lines?

More info:
According to the docs workflows have 258MB of memory available so running into problems at 1MB seems unreated to memory.
BTW the error I get is Runtime error: exited workflow with code 139 (open topic)

Hey @Mike_Simmons! Does your issue seem similar to the issue surfaced in this thread?

If so, I'll add your context to the internal thread investigating this issue!