Loopcloud DRUM is primarily designed to work when you are connected to the internet, but if you save a project and load it up when offline, Loopcloud DRUM will load up in the state in which you saved it. Browsing for presets when offline however, is limited.
Loopcloud DRUM may take longer to load when offline. We are looking into improving this, but if you are waiting for it to load, have patience and your saved preset will load.
If you have any further questions about Loopcloud Drum at all please get in touch with our Support Team at firstname.lastname@example.org - we'd be more than happy to help.