Didn't notice that but tried to execute landing at every runway from a saved flight position. Same issue repeatedly. However, when I started the sim on active runway, circled the airport and landed on the suspect runway I had no issues.
I've deduced the same and in line of your action. Deactivating addons due to load of FSX. My flight originated from FSDT KDFW flying into ORBX PNW passing over KSFF (Orbx) Flying into FSDT CYVR with overcast sky low vis using OPUSFSX and autogen set to Dense:) I would have to say I deserved to experience that type of freeze on final.
This goes back to my previous conclusions (at least as it reflects my system) that in using any Add aircraft ABX-E, NGX etc, I need not to fly direct from heavy addon scenery and layover (add a leg) at a default airport before continuing on to CYVR at these settings