I have had the same issue with the last 2 updates, it is very frustrating.
What I did was download the new release, install it and then move the Launchbox executables to the old versions. Seems to work, but it is not as seamless as before.
I have been having this problem for days. It just runs so slow. Trying to input about 500 games and its been running for days. No VPN, etc, Something has gone wrong, possible the recent upgrade.
I have a large number of Big Fish Games, but I can not seem to get them to work in Launchbox.
When I click on the exe (via file manager), the games work great, but I can not import them into Launchbox