Earlier in the year during silver bullets hiatus, it was running a weird cycle where it would raise its arm but not spin for a normal ride duration (no one was on it ). Also thunder rapids did close way earlier then any of the other rides, but that was probably due to maintenance. Then again take ride ops words with a grain of salt, we need more details than just: "Oh yeah thunder rapids is leaving and getting replaced " Why would they replace a ride that has a constant wait, that is also a ride that most people can ride because it's not too intense and not to boring, if it's having mechanical issues I'm sure another company that does log flumes can fix it.