I have been trying to get my Steam library imported into Launchbox, and I’m having some difficulty. I have put in my ID#, API Key, and ensured my profile is public. However, it claims my account could not be accessed. I have restarted Steam, Launchbox, and the VM it is all hosted on.
Something I noticed is that the link referenced inside the launchbox wizard looks like it has been deprecated. In launchbox it shows up as steamcommunity.com/id/<YOURIDHERE>, but the profile in steam is located at steamcommunity.com/profiles/<YOURIDHERE>. Not sure if the internal code has been updated to reflect this change or not, but it is something I noticed.
EDIT: Just for fun I tried to trick the wizard with a directory traversal by using “../profiles/<YOURIDHERE>”, to no avail. Might not be possible with the wizard, or I might just be barking up the wrong tree.