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In the current snapshot, the navigation bar has changed, and the URL field does not seem to be taking into account font_factor -- with the result that the window is smaller than the font height. You can test this by setting, e.g., font_factor=2.0 in your dillorc (most dramatically for a tiny panel with small icons). The issue seems to be with this factor not being taken into account when bh and lh are set in make_panel() in ui.cc. [...]
I meant what is actually called the "location box," and on comparing the code for 3.0.5 to the snapshot of a few days ago, I see that there has been no change in the section of make_panel() in ui.cc that sets the values of bh, lh, etc. The change that has caused the problem is the addition of line 466 of ui.cc: i->textsize((int) rint(14.0 * prefs.font_factor)); But the height of the CustInput i is still set to lh, which does not take into account prefs.font_factor.