Board backgrounds stuck in low-res placeholder (480x480) for all newly selected or uploaded images

[Scott Stilson]

Starting today, any newly selected board background from Unsplash or new custom image uploads are, for us at least, stuck in a very lossy, blurry resolution.

I have confirmed this is a server-side/frontend delivery issue by:

• verifying that board backgrounds uploaded or selected prior to today still resolve in high resolution perfectly,

• testing rendering in multiple browsers and in incognito mode,

• inspecting the DOM, which shows a div with ID #trello-board-root-low-res-background-preview but no corresponding full-res background div,

• confirming that both the low-res version of the image and a higher-res version exist on the S3 bucket.

My conclusion is that the image transformation workers are successfully creating the high-res assets, but the Trello frontend is failing to request them or trigger the swap from the placeholder to the high-res version.

Is there a known regression in the board rendering pipeline today?

[Scott Stilson]

And as soon I post this, the problem apparently fixes itself. Never mind. 🙃

[Justin Cardinal]

You're quick, Scott! You posted this followup about 5 minutes after we applied the fix. Sorry for the trouble, and glad we've got it working for you again.