Getting "java.lang.IllegalArgumentException: No ContentTypeBinding found for type: ac:com.comalatech.cloud.approvals.ci:cwc-state" errors

while trying to REST content/update a Custom Content Type … in SOME instances of Confluence Cloud, this is, the same code works in most of the instances, but stopped working in a bunch of them

The exact error we’re having is a:
{“message”:“java.lang.IllegalArgumentException: No ContentTypeBinding found for type: ac:com.comalatech.cloud.approvals.ci:cwc-state”,“status”:500}

on update (/rest/api/content/update/XXX) a custom content type from the addon

Any clues?
Juan Arias

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