Commit a439819 changed the content of ogms.owl so that I only see one term with an OGMS ID.
This is a problem because the OBO PURL system redirects http://purl.obolibrary.org/obo/ogms.owl to that file https://raw.githubusercontent.com/OGMS/ogms/master/ogms.owl. (See the PURL configuration at https://github.com/OBOFoundry/purl.obolibrary.org/blob/master/config/ogms.yml#L9C13-L9C72.) The upshot is that I no longer see any OGMS terms in Ontobee or OLS.
The fastest fix I can suggest is to change that PURL configuration to point to the previous release file: https://raw.githubusercontent.com/OGMS/ogms/2021-08-19/ogms.owl. I can take care of this change if you like -- let me know.