Since some days the flow designer won't run any more in my Sandboxes. The message tells me to activate or download Adobe Flash Player. Everything works smooth in my Production Org.

I am using Mac OS X with Safari or Chrome. If I start up my Window 10 in Parallels and use Edge or Firefox there, the designer will work as expected. It is just Mac and Sandboxes in combination. Any explanation, maybe something with Locker Service?

I would like some help with a fairly simple request: I have a process builder setup to run on opportunities. It works fine but only when the record is updated. I would like to have it run every day and execute if a field date on the record is matched to today's date. I don't want to set it to run in the future. Just an everyday event.
I tried forcing the execution with workflow rules updating a date field on the record but it doesn't work when the date is tomorrow or the following date. Nothing happens when the future date comes around.
Is there another trick I'm missing and I can't see a way to trigger this process builder?
Thanks in advance for your help!