Factorio Forums

When you clone a rocket silo which is readying or is ready for launch, the auto-launch with cargo setting is visually copied but providing cargo to launch doesn't launch the rocket.

If you clone the silo at a time where there is no rocket, or the rocket has already launched, it does auto-launch any cargo provided.

Note that the cloned rocket does actually have the cargo copied into it, it just doesn't retain the fact it should launch. To make it launch, unchecking and rechecking the "launch automatically with cargo loaded" checkbox will fix it after cloning.

Thanks for the report. It's now fixed for the next version of 0.17.