The bug still exists in v1.1.5. My spidertron was on creep that grew on water and when I used the creep collector on the tile my spidertron got deleted (the remote went dead too). Tested out using the deconstruction planner to remove creep and the same thing happened. Also got out of my spidertron to stand on the water creep tile and died when I used the creep collector on the tile.
At first I thought it was because I used other mods in the game. However, the bug persisted even when I removed all other mods from the game, leaving only the Krastorio 2 mod active.
Guess I'm staying away from water creep tiles in the future. Or making my first anti creep capsule.