Relevant Issue Council report here: https://issue-council.robertsspaceindustries.com/projects/ISSUE-COUNCIL/issues/IC-5416 As the title says, when posting images or videos inside the content blocks on a forum thread or issue council I get the following error: "Validation failed. Content_blocks; invalid media in block data." It seems to be intermittent on the IC, but not working at all on the forums. Images and videos posted to chat work as expected. Please contribute to the IC above if you've encountered this issue.