Microsoft Edge memory leak and LMS

I run LMS on a dedicated desktop computer (information given below) and yesterday I experienced a very strange and distressing problem. I was in the process of doing "find new music" rescan and opened the LMS web browser interface on the dedicated computer that runs LMS to check on the progress of the rescan. Microsoft Edge was the browser that was opened and I left the browser open with the LMS rescan progress page showing. The rescan finished and everything seemed fine however the next day I noticed that LMS was behaving strangely, e.g. running slowly, rebuffering, etc., so I opened task manager to see what might be causing the problem. I then discovered that a Microsoft Edge sub-process was using almost all of the available RAM on the computer. I tried to close both Edge and the sub-process but to no avail. After doing a hard reboot and getting LMS running once again I then discovered that many of the LMS preferences were either missing, incorrect or corrupt.

A few questions:

1) Is anyone aware of the memory leak issue with Microsoft Edge? And if so was the leak caused by Edge, LMS or a combination of the two?

2) Is there a backup copy of the LMS preference that I can use? And if not, is there a way to make a backup of the LMS preferences for future use?

Thanks in advance for your help.

System/LMS info:

Logitech Media Server Version: 7.9.0 - 1453469922 @ Sat Jan 23 04:06:03 CUT 2016
Operating system: Windows 10 - EN - cp1252
Platform Architecture: 8664
Perl Version: 5.14.1 - MSWin32-x86-multi-thread
Database Version: DBD::SQLite 1.34_01 (sqlite 3.7.7.1)