The Thirteenth Chair

Recently saw this enjoyable little curio on TCM. Adding to the comments of others on the matter of style, I was surprised to notice several examples of short graceful tracking shots forward or back, just to break up the sense of staginess. (The mansion has very smooth floors!) So it's not that the camera is absolutely static. But Browning avoids close-ups for the most part. What was odd is the editing at certain times, which seems way off. There's one bizarre moment when the actors are clearly gathered in preparation for when the director calls "Action," and then after a few seconds, they abruptly begin speaking to each other in mid-sentence. (I'd like to see someone do a whole movie like that!) There's an equally strange edit when Margaret Wycherley walks out of the frame to confront Bela Lugosi (a few steps away), and then we cut to Lugosi sitting in his chair waiting an awfully long time beside dead space for her to walk into frame. I wonder what that was about?