I had seen a lot of discussion about the buttons overlapping (the scouting and splits stuff when you have ratings and stats on the same screen), but I hadn't seen much about the buttons randomly disappearing. And yes, I had searched.
But since you sounded annoyed with me for bringing this up again
I did a little more searching - and found a thread about this issue with the title "Tabs missing". Since technically these aren't tabs (well, technically, they aren't buttons either - they're drop-downs or combo boxes) I hadn't searched for that initially.
Anyway, long story short (too late),
there are several threads about this issue that have been merged here and a couple of different trouble tickets open for it, so now anyone searching for "missing tabs" or "disappearing buttons" should be able to find info on it.
