We are working on an internal ASP.NET framework 4.8 website developed by people now gone from the company. Minor fixes have been done over time and builds have worked. Now, however, we have a required fix and we’re running into a problem where our build pipleine is failing with the message that it cannot find Swagger-Net 8.5.12.1. We suspect the issue might be that package signature validation failed because the certificate expired May 15, 2024. We are using the most recent version of Swagger-Net, and we have no control over what certificate they use.