"Explosive Action II" by Ruinae Retroque Rursus, a custom level for Manic Miners. Original version posted on 26 July 2021, updated version posted on 6 August 2021.
Objectives: Find all the lost Small Vehicles
Explosive Action II
Hello Cadet, and welcome to a tough mission. We had just teleported in our fleet of Small Vehicles in order to teach you about their functionality, but upon establishing communication with the teleport site all the vehicles been teleported into the wrong caverns! You're going to need to find them.
What if... it was Explosive Action, but all the Small Vehicles were lost?
[6 August 2021 update]
Explosive Action II: variant that hopefully contains no freezes. I'm not sure though, please let me know if you continue to encounter them (& where you were drilling)