I think I just got myself into the same jam. Saw that 1.14.5.0 became available and so went to the Store looking for it. The update shows as being available in the MS Store, but refuses to download/install – if I click the download symbol nothing happens and it remains in the download queue. However, had other Store updates that downloaded & installed just fine.
So I decided to run the sim anyway thinking it would keep me at 1.13.17.0, but the in-sim setup still ran installing content for 1.14.5.0. This has never happened in the past. Usually, the store “outer” update is required first before the in-sim “inner” setup will do its dance.
Now stuck in limbo with a seemingly mismatched install