Did anyone else notice the FAA flight restrictions that popped up over Nevada last week with zero explanation?

Mate I clocked this too and went straight down the ADS-B rabbit hole, half the usual traffic just vanished off FlightRadar24 for about three hours on Tuesday. No NOTAM explanation worth a damn, just some vague "military operations" boilerplate that tells you absolutely nothing useful.

Thing is Nevada gets these pop-up TFRs fairly regular near the Nellis and TTR corridor so normally I'd shrug it off, but this one was positioned weirdly far east of the usual footprint which is what got my attention. Someone on another forum reckoned they saw unusual contrail patterns earlier that same morning but I cant verify that obviously.

Anyone in the area actually on the ground for this? Would love to know if there was any visual or audio to go with it, because a restriction that size with that little paperwork usually means something interesting is being tested or moved. What have you lot dug up so far?

@WobblyProwler what area specifically are we talking, because Nevada is massive and "no explanation" covers everything from a genuine black project test to some bloke accidentally filing the wrong paperwork. Do you have the actual NOTAM reference number? Because I've seen people get excited about these before and it turns out to be something boring like a military exercise that was listed but just not under the airspace people were checking. Not saying thats the case here, genuinely curious - just want to rule out the mundane stuff before we go full Area 51 about it.