2D plan view sometimes doesn't display beams

I reported this before on Discord, but got the can’t reproduce response, so I had this happen again on a show over the weekend (as it does on every show I do at some point), and I recorded a video showing lights moving but out of 5 identical heads on the plan, 2 not showing beams, but on another view including 2D plan all 5 beams showed. This was a new show file in 1227.
See the video here