I believe I found the issue. I use color codes to work my pictures. When I select a picture in Lightroom Classic to edit in Studio, edit it, save and return, the color code is missing so does not show up in the current color filter. How can this be fixed? It worked just fine prior to upgrading to Studio.
I have upgraded to the newest Studio 1.11.4 as of 6/14/18 (Windows) Didn't help this issue.