Bugs in Redmi Note 1S

When I flash Nightly ROM for my device
I found some bugs in it
Volte ,Sound, and calling,


When posting a bug report, please mention the steps to replicate and affected version. Reports with screenshots, screen recordings or logcats will potentially be resolved faster.

Mandatory report format:
Bug description:
Affected version:
Steps to replicate:

If you do not follow the format above when posting a bug report, it will delete or automatically be ignored. Without sufficient information, it is impossible for us to debug. Most probably the issue could be caused by your own inappropiate usage.

Bugs in Redmi Note 1S 继续讨论:ok, bug I speak very poor English.
I use gucci.
when I use MK71.2, via browser brokes 2 or 3 times per day;
when I use MK80.1, via browser brokes 5 or 6 times per day.
I guess MK80.1 need more memory, could you find someway to reduce memory needs on MK80.1?