On Jan 1 2019 our older version of snagit rec'd a update that defaults a time and date stamp on every screen shot. Interesting that an older version, 11.4.3, which no longer can get tech support can get updates, for which we can no longer get support for.
Thank you. The Global HotKey was updated on Jan 1 2019 to have a date and time stamp. It's HotKey was the PRTSC key. I changed the Image Hotkey to be PRTSC key and changed the Global Hotkey to be something I would not normally use. That worked.