Started to a blank layout (since otherwise the HANG reported elsewhere kicks in), opened a Reading List:

2014-08-02 10:49:26.7424 1 Info PanelViewModel Got panel settings for Preferences: SelectedList=Epistle%20to%20Titus!Logos,%20Community!http://topics.logos.com/Epistle_to_Titus!1
Note that Logos didn't become unresponsive, it just took its time searching for this list (which isn't specific to that list in particular, happens all the time).
I refrained from doing anything in Logos - read the forum, prepared this post, looked into the Logos.log from time to time - and bingo, at 11:23 the list populated.
Logos.log: 3618.Logos.log empty layout & RL.zip
CEF-Log just in case: 5554.cef.log
The logos.log has this ominous web exception warnings for thumbnail pictures (when I click on the URL they show in my browser instantly) and an error for a web exception, but earlier than the call of the RL.
Actually I'm not sure when this issue started - maybe with the re-configurations of Logos' servers that were done to increase connectivity for Proclaim? Or the switch to the CEF internal browser?
This bug nearly prevents me from checking the Reading List features and updating topics.logos.com