I just released beta.3, hopefully it’ll fix at least your captured-at issue.
I also fixed (at least one cause) of an erroneous “library is empty” message on initial run in beta.3, so that may not be an issue anymore.
I looked at the db you DMed me, and the schema doesn’t match up with what the migrations should result in. If you start with a new PhotoStructure library, that should result in a correct schema (feel free to send me a new db if it doesn’t…).