Exported Video is brighter/washed out...what am I missing?

At some point this year I noticed that my exported videos are brighter and washed out...looks like about 1/3 stop brighter.  I see this change comparing the exported beside my Project panel.  When I upload to Youtube or Vimeo the exported video is similarly too bright.  I did not have this problem before this year.  I  have read alot of posts on this issue checked all my settings and can't find what's causing it.  Here are my basic settings:

2019 imac.  Calibrated with Spyder.

Premiere Pro. 22.4.0

In Premiere General preferences I have turned on:  Display Color Management.  

S-Log 3 footage taken with Sony A7iv/Ninja V external recorder (10.2.2).

Sequence settings:  Working Color Space:  Rec. 709

If I go to any clip and select Modify, Interpret Footage:  "Use Media Color Space from File:  Rec709" is checked.  It makes no difference if I check "Color Space Override:  Rec 709".

Much appreciated if anyone can point out something I'm missing.  tks.