Looked through the PDF manual but couldn't zero in on anything specific. Two items here.
1. I was taking some shots of the moon last night. Camera was set on Av- 2/5 sec., f/5, 110mm, ISO 3200 (Auto). The Exposure Simulation icon was flashing. Found this in the manual but nothing why it was flashing. Did I over look something?
2. The Live View showed two vertical lines on it but they aren't on the photo in File Explorer.
As always, your help is most appreciated.
Two months ago, I couldn't spell Fotografter. Now I are one! 
I think exposure sim flashing means that it can't create a simulation of the exposure, because it is too dark or some other reason.
From my T6S manual:
