Hi all! The solution that worked for me was renaming the session cookie. After Mendix version 9.20 cookie was renamed to "XASSESSIONID”, before that there was a "Host_” prefix. You can just open your project in Eclipse IDE and using 'Search’ find where you use prefix "Host_” (unfortunately, I don't remember the full name). For me it was in LoginUser.java file. Then rename it to "XASSESSIONID”, save, build on Eclipse and run on Mendix.
Hope this helps!
I had the same kind of issue when I upgraded our app from 9.18.4 to 9.24.1
I was able to resolve it by updating the libraries.
Here is the list of libraries used by default in mendix 9.24.1:
oauth2-oidc-sdk-10.7.1
nimbus-jose-jwt-9.30.2
lang-tag-1.7
json-smart-2.4.10
jcip-annotations-1.0-1
content-type-2.2
commons-text-1.10.0
commons-lang3-3.12.0
asm-9.3
accessors-smart-2.4.9
I created a new project in mendix9.24.1, copy pasted those libraries in my real project , and removed old (duplicated) ones.
Hope that helps.
Hey Elina,
Updating the SAML module to the latest version is what worked for me.