When plotting time series, the option
set mouse mouseformat 3
should annotate the mouse position in the wxt window's status bar exactly as defined by the set timefmt command. This works OK when there is only one yaxis with ytics. However, when also the y2tics are set, the annotation is as defined by set format x, which can be different.
The problem becomes important when I want to plot some long-time series indicating only days with the xtics, but to be able to check the exact times with the mouse.
Confirmed.
The issue is only present when the regular xtics format conflicts with the requested mousing xtics format.
Fixed in 5.3, will probably back-port to 5.2