Hello, in my team we are trying to implement Traditional APIs to process some cases externally. All good for the ones using GET methods, however when trying to run the one for Performing an assignment, it is not moving the case forward.

Debugging the manual execution of the API and checking some logs, we found that there is a step failing, specifically one Activity step executing a "Page-Validate" method over pyWorkPage. A null pointer exception with the following message: "java.lang.NullPointerException: Cannot invoke "com.pega.pegarules.data.internal.dictionary.ClassInfoImpl.getOwner()" because "aClassSpec" is null".

Any ideas or someone has faced the same issue?, there is no recent change on the environments or classes, so we are not sure what is happening here.

Thanks in advance,

Gilberto