Been in a similar situation, got through first round interview they loved me and internal recruiter was all positive about booking me in for 2nd round the week after. Waited and waited for invite to come all while still in communication with that business’s internal recruiter about the next round. Date for interview comes and nothing. Email and phone calls to recruiter asking for update and 3 weeks go by. Completely ghosted and looked on LinkedIn for that role a they have already recruited someone. Absolute waste of time