We have a strand 300. The other day during a long tech it started randomly deleting subs. Then about half of them would come back at some point and about half had to be re-recorded. I had 4 subs that this happened over and over on, 2 that it happened a couple of times, and a couple of others that it happened once. The frequency it happened seems to directly correlate to how often a particular sub's bump button was used. However by the end we were being very careful to ensure that we were not accidentally bumping anything else (like delete!).
Weird thing number 2 is it sometimes (nearly always on boot, occasionally during operation) will capture channels (they show on the monitor) at values. Typically it's values that it was used on before we lost control of those channels. We then have to type in a zero (or another level) from command and once we clear that zero regain control. Taking control with the wheel works as well. Clear and strand-clear (including 3x each) do not release them. Not really an issue at startup, but I had this happen during a show a few weeks ago which was obviously a rather large issue.
Anyone seen this or have ideas?