I had a quick play with this on Lubuntu 19.10, terminator opened and split vertically. On the left-side-term I could select text from left- to-right as expected including first character of text, however in the right-side-term whenever the cursor moved to the left-most-character on a line of text, the cursor would switch to re-size my two terminals (thus I too could only select from the second character in a line).
guiverc@d960-ubu2:~$ apt-cache policy terminator terminator: Installed: 1.91-4 Candidate: 1.91-4 Version table: *** 1.91-4 500 500 http://ftp.iinet.net.au/pub/ubuntu eoan/universe amd64 Packages 500 http://ftp.iinet.net.au/pub/ubuntu eoan/universe i386 Packages 100 /var/lib/dpkg/status ** Tags added: eoan -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1839744 Title: Can't Copy Text Too Close to Frame Divider To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/terminator/+bug/1839744/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs