Viking confused by zoom out/in

[activityworkshop]

Viking - if you zoom out a long way and zoom in again, the scale bar gets completely confused and the loaded track & map no longer appear. The Ruler tool then draws lots of lines all over the screen, which flicker and follow the mouse cursor. Closing and reopening Viking solves the problem. Problem is reproducible every time but maybe depends on speed of zoom?

[activityworkshop]

screenshot of lines from ruler tool in viking (lines are from ruler, data has disappeared)

[hamish]

seems ok in the new version