A dialog opened by a click is drawn in the frame of that click, and in that
frame egui takes the focus from any field the click missed. The first time a
dialog's window shows, that frame only measures it, so its first field took
the focus a frame later and kept it; every later time the field took it in
the click's frame and lost it at once. The field now takes it the frame after
the click.
bflatastic
0765bc9bcd