Problem is that if i will try to add some cyrrylic to Alert Description via Templates for unit monitor mp will fail to build

Error Invalid character in the given encoding. Line 64, position 1.
137BO Monitoring Services.mptg.mpx
64

If i will create unit monitor and display string with pure XML - all is ok

So, it is a bug

Also - https://social.technet.microsoft.com/Forums/systemcenter/en-US/2630e0e1-d501-4a74-9ad0-23fcfe5c3675/vsae-hates-cyrillic-in-themplates-?forum=operationsmanagerauthoring