I just want to ask, if anybody else has faced this problem:
It occurs on using custom fonts, but only on device Edge 1050, and it happens every now and then. It is definitely not a code error, because - as I sayd - it happens now and then, but only with Edge 1050:
Line 3349 is the first appearance of using the custom font myTINY_T in onUpdate(dc) :
dc.drawText( 10, 5, myTINY_T, "GPS", textCenter);
myTINY_T = WatchUi.loadResource(Rez.Fonts.id_font_myTINY_T5);