GrubHub IT should provide some secure, controlled method for Drivers to restore a prior STABLE usable version of the Driver Application when the newly published version exhibits (and Drivers call to report) uptime, stability and usability issues shortly after its release. v4.33 Problem Tickets were auto Closed as Resolved by referencing FAQs, known enabled configuration settings, advising cache flush, standard application / device restart, reboot, reinstall RATHER than impending v4.34.5 release