Did you clean your userlib folder? Because the new module changes a lot of JAR files in the userlib so you might end up with (a lot) of double or obsolete JAR files that needs to be cleaned out. Do also note that the latest module can have issues with AzureAD and Okta setups. See the forum post here: https://forum.mendix.com/link/questions/107477
Mendix has updated the SAML again, please try the newer version, this should have the Azure situation fixed.
Hope this helps