Here's a weird bug on our TZT9 chartplotter. The traffic separation zone (shipping lanes) south of San Francisco are oriented due North-South. When we have the display in North Up mode everything looks fine. But when we have it in Heading Up mode, the northbound pink arrows don't rotate with the rest of the chart. See screenshots below. It's only the northbound approach that has this problem; the arrows in similar traffic separation zones North and West of San Francisco rotate correctly.