Had today same issue with the new upgrade.
changing permission to make script executeable did the job.
After that I had to fight still with display issues which made my core behaving strange.
sometimes showed the orbiter somtimes not
MythTV was not shown on the display.
so finding out that it has to to with addressing the screen I decided to delete all software packages
(Media Player , mythTV plugin and so on) from the Orbiter
Regen - Reload worked
Reactivated the Software on the WebAdmin
waited for software to be installed, Reload Regen Reload
Everything is working