This is a bug in Bluebuild . Until it's fixed, you can work around it by disabling Bluebuild via the in-game hotkeys before placing a blueprint or walking near to blueprint ghosts. Basically anytime Bluebuild tries to build something and you have a blueprint in your cursor, you will see this error ...

Hi! When pasting a blueprint without any miniloaders in Factorio 0.16.27 with Miniloader version 1.5.11 I get this error:

Error while running event Bluebuild::on_tick (ID 0)
Error while running event miniloader::on_put_item (ID 9)
__miniloader__/lualib/util.lua:65: invalid direction passed to ...