I don't need a response on this. V27 for Windows is not high quality. You need to do better on your QA. I upgraded to V27 from V25 about a month ago and am just now using it heavily. Among the sloppy problems I've seen:
1. Mixer window takes a long time to render
2. Deleted text takes a long time to disappear
3. I had highlighted some measures using the arrow. I could not right click in the selected area. I had to switch tools, switch back, and then reselect the measures.
4. I just tried to change a font on a text window. It turned it to unspaced garbage, just a one-line black blur. I was able to change it back to the original, change it to another font, then change it to the font I wanted.
I'm sure there have been others that made me stumble in the past couple of days, these are the ones that spring to mind. Only annoyances (so far) but not inspiring confidence.