I opened Proclaim and created a new presentation. Included in this display is a slide with a MP4 background. I ran the presentation, went off-air and then closed proclaim. I noticed that the process remains in the task list and consumes a large amount of memory (>360M). I tried this test several times and found that on other attempts the same result occurred and even saw the process take more RAM.
2475.ProclaimError.log1018.Proclaim.log