If you try to deconstruct platforms then the deconstruction marker will remain and nanobots will try to mine the water forever.
I checked my code and nothing even runs in defines.events.on_robot_mined_tile for this case which is why I don't think it's my fault

https://mods.factorio.com/mod/platforms

You need to also watch script_raised_destroy

That event doesn't do anything on tiles

Ok I took a quick peek to remind me. It's the on_player events you want to watch

This problem happens to me too!

I take that back.... Seems I might have been missing something. Fixed for the next release

sounds good :)