JSON input errors while calling assistant API

– Cell In[1], line 5 json_input = ‘’'[ ^ SyntaxError: incomplete input

Does anybody know about any additional limitations that the API may have?

A couple of days ago (Apr 2) everything was working OK

Also see the text below when I expand the message

# Since the input JSON string appears to be very long and getting cut off, it's better to ingest it as a direct input.

then right after that, this:
Cell In[3], line 5 input_json_str = “”" ^ SyntaxError: incomplete input

All these messages comes from my threads section.

I do regularly get input size and JSON related errors, but today, nothing has worked!