I'm now running Beta 10. I don't think this has to do with the source files. Maybe this is related to the location/nationality settings in the OS? When I reported this in another thread (http://community.logos.com/forums/t/34237.aspx) I tried english UI but it doesn't solve anything.
So far I never have had "permission" to open my PBBs after compiling them. (It's a bit frustrating) [:'(]
Every time I tried to compile PBBs in the first betas of this cycle the compilation caused Logos to crash. This was probably caused by the language specific file path. Can the current issue depend on something similar?