We have many reports that were using subscription filters and after a forced update/migration on 10/19/23 by metabase we seem to no longer have the feature. All of our reports sent today without filters and when editing the subscription filter it says they are only available in paid plans, which we do have.
We worked with a1ex, but if you are also experiencing this, please contact us at help@metabase.com so we can sort this out.