I lost my divider on the task bar

I was dragging and dropping some stuff and I did something that made the( right side) divider disappear. I have tried all the obvious stuff, locking unlocking taskbar and I cannot get it back.

the divider between start button and TLB (is that actually my lost divider?) will not move.

desperate!

well after posting my query, I tried dragging DOWN on what appeared to only be the divider between the start button and TLB and that fixed my problem.

wierd.