# ask-community

Joel Olazagasti

05/22/2023, 2:31 PM
What are the circumstances under which an
auto-materialize policy wouldn't cause an asset to be rematerialized when there are upstream data changes?

Vitaly Markov

05/22/2023, 2:32 PM
I see the same problem. I suspect it's a bug, but devs promised to include GUI or logs for debugging of auto materialization. We'll see 🙂
🌈 1

Joel Olazagasti

05/22/2023, 2:33 PM
Gotcha, thanks! Makes sense, I was trying to imagine a logical reason it wouldn't be triggering. A bug definitely makes the most sense

Andras Somi

05/22/2023, 2:39 PM
If it involves partitioned ancestor of a non-partitioned asset then you might want to read through this discussion. Clarified lots of things for me.

Joel Olazagasti

05/22/2023, 2:45 PM
Interesting! This is good to keep in mind, I do have one graph of assets that are non-partitioned depending on a partitioned ancestor, but currently it's fully materialized, so that graph is actually fully up to date.