Yea...chance blocks in skyfactor 2.5 be careful with them xD i opend one to close to my AE systems an got disco party half my drvies and my controlller went bye bye. replaced with wool
Some more motivation to steer clear of chance cubes- We've had a player recently who placed use a chance cube and had their playerdata bugged. They were unable to die (sounds great, right?) at the expense of being able to interact with almost anything, they weren't even able to pick items up. They can also turn into bedrock blocks in the middle of your base. I stay far, far away from them, personally.
I'd just make a spot 100 blocks away from the island and use those chance blocks here. Also would keep the same distance after activating them
when i played project ozone i got a chance cube as my 1st quest like everyone else does it did the /nuke on me destroyed my entire island