With the now-enforced 50-tile limit, and the issues I'm having with trying to keep my factories and other buildings full of workers, I've notice that the Production Priority scale is not be auto-reassigned by the system. No matter where I put the scale at, at some point later I notice that it's been reassigned back to middle and my employees are gone.
I never find the bar resetted, even after relog. You play in region or Single map?
The 50 tile limit isn't really a issue, IF the player was already using the 24 tiles fatigue rule.. And avoid to use game gimmick (ignoring all game scheme, just give money for fix any problem, to bad they solve problem only in theory). For avoid random jump-worker, you only need to increment a little bit the population, by 10-20%.