Creative Assembly interview questions

Took ages got recruiter to get back to me whole process took 2 months and only did the first 2 rounds. First was with recruiter was very general he seem very eager to have more people interview so we just had a nice chat about my experience and CA game, second was a bit more gruelling of a process general chat and also getting grilled on C++ questions

I applied in early September for a Gameplay Programmer role, and was given a technical test 9 days later. I completed this test within the given time frame, taking an hour of my time on the weekend to complete it, thinking I did relatively well and answered most of the questions correctly. It then took them 2 months to reply to me, assuming they already hired and filled the role since it was taken down during the 2 months I was waiting for a response. They then offered to transition my application to a Technical Designer role, which I agreed. They then, 3 days later, rejected me without any tests, calls or anything. This screams unprofessional to me, considering it shouldn’t have taken 2 months after I spent my time to complete their test.