If the SAML.config file for the SAML Module indicates responses will be signed, the module will throw a 500 error when a response is not signed but will not log the error.
Bug# 172630 votes
The RemoteAuthValidation would prevent the ILLiad web DLLs from looking at IIS server variables when determining remote authentication details, such as the username.
Bug# 5021 & 50210 votes
This is because RemoteAuth takes authority. As a result patron requests may fail after being submitted since the user is invalid.
Bug# 45750 votes