Oh, I see it now, thanks.
Out of curiosity, what was the motivation for setting it up this way in the first place, as opposed to allowing continuity of saves between versions, much like other RenPy games?
With unfinished design (procedural hierarchy of modules, call sequence, ...) of the game I cannot solve the "continuity of process" problem for renpy saves and resumes, so the pod is a kind of data continuity crutch.
I took your hint and in V0.6. at saved the multiverse pod file in the generic save game path, so it is automatically found be new versions and eliminates access issues.