We have identified the root cause of the search failure.
Our team learned the search issues were indeed caused by the larger maintenance event from earlier this weekend: https://status.podio.com/incidents/rgskm68bvqth
We found the root cause and fix will be applied to the upgraded infrastructure this week to ensure Search will not be affected by the upgrade.
Thanks a lot to our customers who helped report issues over this weekend.
When this issue has been addressed we believe the upgraded infrastructure will be able to serve a good purpose as a more stable, secure and reliable foundation going forward.