Hi Venkata,
From all your screen shots, it seems you were trying to run a process chain to upload data to BPC, but prior to load data to BPC you were trying to load data to PSA from a flat file stored in server (AL11).
As per the rule, when prior to load data from a flat file to either a PSA or BPC Cube, we have to close that flat file (Means it should not be open mode).
I think, at the time of 1st and 2nd instances, your file was open at the time of to running the Package, but in the 3rd instances, it was closed.So it worked.
Thanks,
Shub