Postmortem -
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Jan 22, 19:05 EST
Resolved -
Some customers were temporarily unable to publish newsletters due to new HTML validation rules incorrectly flagging existing templates using HTML Blocks as invalid.
This issue was introduced as part of a recent update supporting enhanced HTML block functionality. While the update was intended to improve safety and flexibility for new use cases, it unintentionally affected a subset of existing templates that had previously published without issue.
Jan 22, 11:30 EST