The Maintenance Window Scope shows the following conditions, i.e. when an Alert tag is specified, only Alerts with the specified tag will be affected. See knowledge document Alert was fired despite they were in Maintenance Window for more information how the Alert works.
Affected Alerts = All alerts with alert tag(s), refined by point tag(s) OR source(s) OR source tag(s)
However, the Maintenance Window List screen shows the following conditions. It looks that the specified Alert tags, Point tags or Source tags need to be matched.
Alert Tags [xxxxxx] OR [Sources (xxxxxx or xxxxxx)]
Impacted version: Wavefront 236.6
Fixed version: Wavefront 236.8, 237.9, 238.1, 239.0
The problem will be fixed in 236.8, 237.9, 238.1, or 239.0.
When creating a Maintenance Window, consider the following.