My curated issues on Source Han Serif v2.001

First of all, congratulations and thank you for the hard work on the release of Source Han Serif v2.001! Here I am listing the issues I found as of version 2.001, which I think are all isolated cases.

Here I try to retrain from writing too many remarks if I think the sample image is enough to illustrate the problem, so please tell me if they are not obvious enough.