thanks so much for the kind words! it means a lot to hear that the design of the game works, since it's a mishmash of a lot of mechanics from other games that I like. so if the core loop of Silt Spawn is fun, then the demo is a success!! :D
that said, I'm sorry you encountered this bug :( I'm tempted to say that it's more of a bad design choice on my part instead of a bug. but either way, I realize now that you should always be able to grab items, and the idea of a "selected tool" really doesn't need to exist. hopefully, in reworking this, the bug you found will get squashed! so thank you again!