Hi All, I've recently started getting InvalidBSON: Invalid length or type code errors while reading documents from a cursor.

It only happens when my scripts are running against Heroku

I'm running mongo --version 3.0.12 in both places. Python and pymongo versions listed below.

Not sure what else to include. I can't read the offending documents from a cursor in python, so I can't identify what's wrong with them.

$ heroku run python -c "import sys; print(sys.version)"
Running python -c "import sys; print(sys.version)" on ⬢ kiddom-crm2... up, run.1157 (Standard-1X)
2.7.12 (default, Jun 28 2016, 18:48:18)
[GCC 4.8.4]

$ heroku run python -c "import pymongo; print(pymongo.version); print(pymongo.has_c())"
Running python -c "import pymongo; print(pymongo.version); print(pymongo.has_c())" on ⬢ kiddom-crm2... up, run.2613 (Standard-1X)
3.3.0
True