I am using Logos 4.1 SR-4 (4.10.4.6514). For sometime I was doing a lot of study in the NT and had created a layout specific to that purpose. I then switched to a study of Daniel. When I open the layout now it does open, but then freezes. Mark Barnes said I should time it. Well, at 30 minutes I gave up. Part of this layout included bible versions NKJV, NAS, ESV, NLT, NET, NRSV, LEB, HDNT (ESV), NIV, NA27. Also had some commentaries and dictionaries. My "trip" into Daniel started as just a lookup, but has turned into a large study.
I thought Logos 4 had solved the problem of switching to the other testament that plagued Libronix. I think I'll create a new layout for OT study and see if that helps. Thanks.