SMS Events Stopped - Webhook Only App

We have a webhook only app that was created and tested approximately 48 hours ago. It triggers on inbound/outbound SMS messages and was working fine. It appears the following day (yesterday) the webhook stopped receiving anything from Zoom. We have verified that the webhook, which is through works. The app also still shows validated, so it doesn’t appear to be re-validation related. Any ideas on what could be wrong? Are there webhook logs anywhere that I can review?

I have checked the logs in the marketplace and the logs show that it hasn’t attempted to use the webhook since the 18th, which is the day we set it up. I have confirmed we have sent and received text messages after that time.