I was told by FSO that my clearance in JPAS shows something about an SOR....however it has been almost 6 months and now it says undetermined...any idea what this means?
I'm not sure this is what is happening in your case, but I have heard of the adjudication facility basically declining to make a decision. Can't recall the details of what this means... maybe @marko.hakamaa can help clear it up.
Again, I'm not saying this is what happened in your case, but it is something that has been reported in forums like this.
Sounds like you were sent, either directly or through the FSO, a statement of reasons intending to deny your clearance and the process never got closed out. If you are still with the company have the FSO submit a request to get the status resolved. If you are not with the company then you are in limbo until someone else offers you a job requiring the clearance and they will have to work it to resolution.