Sorry for my late answer, i very very busy between answering at the forum, answering at the irc chat, answering at email and preparing the new version of 66, boot-66serv, ...
I work 12 hours per day on Obarun and without any money entering in my pocket (this is the same thing for all Obarun team members).
Please people reading this thread consider to become a patron at
https://patreon.com/obarun
Anyway, currently i have no time to investigate what's happen at pacopts. I will investigate it as soon as possible. For the moment you can use any AUR helper of your choice.
Thanks for your patience and many many thanks for your reports.