the hatch-pattern Scale changed, it does not shown?how can i do?

the hatch-pattern Scale changed, it does not shown?how can i do?
ths!

I can reproduce this with e.g. the ANGLE hatch pattern at 0.2 scale. It looks like AutoCAD's display system ignores the hatch at that small scale because it exceeds some threshold for the number of vectors to draw, but I don't see any way to change the threshold.