I can confirm exactly the same behavior on Version 12.0.7.1837 (32 bit) - previously (in version 11 which I had) after crash recovery mechanism stored SQL statements together with information about connection.
Now - I can see only "?" for each line so it's impossible to distinguish sessions...
Hi!
I have installed PLSQL Developer 12.0.7.1837 (32 bit) and I encounter problem with plugin LBC Recall Named SQL - it does not log executed SQL statements, I see nothing when I choose "Recall SQL" from menu.
Previously - on the same machine/system - I had version 11 and logging SQL...