Prefill URL isn't working

[eanorell]

We have a series of event registration forms listed on our web site, with URLs that prefill a particular field and hide it from the user. These links all broke today. Help!

For example, this link (which is live on our site) stopped working today:
https://airtable.com/appOQfoS4FjmyZPko/shr3lPQDrY1VTx0Ba?prefill_Events=STEM%20Helping%20Students%20...

But removing the prefill_Events and hide_Events workarounds leaves us with a form that does:
https://airtable.com/appOQfoS4FjmyZPko/shr3lPQDrY1VTx0Ba

Any ideas about why this stopped working today? We have been using this prefill URL syntax for months without an issue.

[CamFields]

Having the same issue

[Daniel_Rieger]

Having same issue as well!

[music_airtable]

same issue @airtable please sort this out. 

i have over 50 forms that are used daily and none of them work 

[Daniel_Rieger]

Oof, I thought it was just one of my forms, you made me check the rest and every one of them is down. @airtable please fix!!