When I click on a folder in the left pane's address bar, the right pane responds and vice versa. For example, if I click on the E: > on the left, here is what I get:
As you can see the right pane shows the contents of E:, not the left!
I am not positive how to reproduce as I have been working on that lister for a couple of days. You can see my other posts from today to get an idea of what I've been doing. I will leave it open in case you want me to try anything else.
EDIT:
I just double-clicked a folder in the left pane and it opened in the right. The cross-talk is not limited to the address bar. Then when I double-clicked a folder in the right pane it opened in the left and continued zigzagging back and forth.
Thanks. I had just come to the conclusion that I may have a stuck Ctrl key, when I discovered that mouse-wheel-scrolling was enlarging/shrinking. But tapping didn't help (but see below).
So I opened a dual lister on my laptop computer and checked what happens with a ctrl-double-click and see that this is an apparent feature I hadn't known about in Dopus.
For the record, my Ctrl key is not stuck. But I was overseeing the operation on my home computer remotely using Anydesk. It appears that Anydesk has a bug that simulates a stuck Ctrl key. (arghh)
Restarting Anydesk (client) didn't help. I don't want to tamper with the remote machine until it finishes the hours-long copying process I'm in the middle of. At any rate, I think this topic can be closed as "due to stuck Ctrl key".
As I wrote, this thread can be closed. Also, it was not the fault of Anydesk. It was my fault. I was accessing my home machine remotely through Anydesk. My (client) keyboard and all Ctrl keys were fine. When I got home I discovered something had fallen on the local keyboard and was pressing on the Ctrl key