More validation fixes

Exploration Queries/InputEntity_Account/Acc2IP_rareIPLocation.yaml

@@ -60,7 +60,8 @@ query: |
   | where EventResult =~ "Success"
   | extend FullLocation = strcat(SrcGeoCountry,'|', SrcGeoRegion, '|', SrcGeoCity)
   | extend TargetUserScope = column_ifexists("TargetUserScope", iif(User has "@", split(User, "@")[1], "Unknown"))
-  | extend columnifexists("IpAddr", SrcIpAddr)
+  | extend SrcIpAddr = column_ifexists("SrcIpAddr", "")
+  | extend IpAddr = column_ifexists("IpAddr", SrcIpAddr)
   | summarize ConnectionCount = count() by FullLocation, User, IpAddr, TargetUsername,TargetUserScope,  TargetUserId
   | summarize make_list(IpAddr), make_list(FullLocation), make_list(ConnectionCount), dcount(FullLocation), totalActivity = sum(ConnectionCount) by User, TargetUsername, TargetUserScope, TargetUserId
   | mvexpand Location = list_FullLocation, ConnectionCount = list_ConnectionCount, IPAddress = list_IpAddr

Exploration Queries/InputEntity_Host/MostPrevIn_ByHost.yaml

@@ -1,4 +1,4 @@
-id: d7cfd771-3082-4199-8fbb-9c12a3db88a8  
+Id: d7cfd771-3082-4199-8fbb-9c12a3db88a8  
 DisplayName: Most Prevalent Inbound Network Connections by Host
 Description: Top 10 (most prevalent) inbound network connection events by a given host in the range of +-30m
 InputEntityType: Host

Exploration Queries/InputEntity_IP/MostPrevLxHosts_ByIP.yaml

@@ -21,6 +21,7 @@ query: |
   _Im_NetworkSession
     | where has_ipv4(SrcIpAddr, v_IP_Address) or ipv6_is_match(SrcIpAddr, v_IP_Address)
     | where NetworkDirection =~ "Outbound"
+    | extend Process = columnifexists("Process", "")
     | extend info = pack('HostIP', SrcIpAddr, 'SrcPort', SrcPortNumber, 'DstIP', DstIpAddr,'DstPort', DstPortNumber, 'DstFQDN', DstFQDN, 'User', SrcUsername, 'Process', Process)
     | extend Dvc = tolower(Dvc)
     | summarize min(TimeGenerated), max(TimeGenerated), count(), Host_Aux_info = make_set(info, maxSize=100) by Dvc