RuntimeError: TableSchema is none (BigQuery)

[memeplex]

What language are you using?

Python

What version are you using?

0.4.5

What database are you using?

BigQuery

What dataframe are you using?

Both: Pandas, Arrow

Can you describe your bug?

The (equivalent to) the first query below throws RuntimeError: TableSchema is none, after removing the join as in the second query it works fine.

SELECT t1.item_id
FROM T1 AS t1
INNER JOIN T2 AS t2 ON t2.item_id = t1.item_id
WHERE t1.site_id = "site"
LIMIT 10

SELECT t1.item_id
FROM T1 AS t1
WHERE t1.site_id = "site"
LIMIT 10

What are the steps to reproduce the behavior?

I've isolated the problem from a large query but I'm stuck here. Please help me provide more useful information.