When I create a new profile, or import one, why does it not appear?
Check to see if you have Show Groups Only ticked in the Preferences main menu. If so, select it to untick it.
NOTE: the above refers to a syndrome and menu option that is only relevant to SyncBack V3 freeware (now discontinued). SyncBackFree/SE/Pro have an enhanced option Only show groups and profiles not in a group in the Preferences main menu, but this will not cause a profile to be hidden.