Once I placed the beacon onto the pedestal I encountered a glitch that is making the quest impossible to play. The beacon which I'm supposed to guide back to Meridia's temple is nowhere to be found. If I set this quest as my only active and walk towards the marker, it disappears with no trace of the beacon. I've scoured the area and it's nowhere to be found. This and the lag I'm experiencing at 8.7 MB which started around 6.0MB is becoming exponentially worse. I truly hope the upcoming patch fixes these issues and all others who have posted their grievances.
I made a thread earlier addressing this glitch, but I wanted to stress how disappointing it is to have this glitch (and to put more detail into the glitch I'm experiencing) in a big quest on top of the ever increasing lag, increase of save time, increase of load time et cetera.