Hi!

When placing the structure by hand, remotely on a planet or in space, I get this:

The mod Shortwave for 2.0 (0.4.5) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event shortwave_fix::on_built_entity (ID 6)
LuaEntity API call when LuaEntity was invalid.
stack traceback:
[C]: in function 'index'
__shortwave_fix/control.lua:42: in function 'check_channels'
shortwave_fix/control.lua:187: in function <shortwave_fix/control.lua:158>

It is not caused by a recent change of the mod itself because the same happens if I go back as far as mod version 0.4.2.

I don't know how your savefile got into that state, but the latest update should correct it. You might need to re-tune some radios to make them reconnect. If they don't reconnect, please share your savefile so I can debug it.

Thank you.

It works again and all settings were retained. No re-tuning was necessary.
You have no strange dependencies whatsoever so no clue HOW anything could have gone whacky in the first place. Aliens.