Created attachment 53438 [details] result using "all" value in the filters
Created attachment 53439 [details] result using precised filter
When I use the advanced search with the value "all" for library and location, none of my subscription is found. May be there is a problem in the SQl query interpretation in this function "SearchSubscriptions" (file : "C4/Serials.pm").
This appears to be fixed in master!