I noted this problem earlier this week but it seems it’s more widespread than previously thought.
Manon Williams says that some OPAC records are not displaying availability information or the “Request” button. It seems to be happening with newer versions of web browsers. We’re adding the following message to the initial OPAC search screen:
Please note: Some records are not displaying a “Request” button or availability information. We are working on the problem and apologize for any inconvenience.