diff --git a/config/global.ini.php b/config/global.ini.php
index aaed647f999..04485db61ab 100755
--- a/config/global.ini.php
+++ b/config/global.ini.php
@@ -200,7 +200,7 @@
 ; controls whether Unique Visitors will be processed for groups of websites. these metrics describe the number
 ; of unique visitors across the entire set of websites, so if a visitor visited two websites in the group, she
 ; would still only be counted as one. only relevant when using plugins that group sites together
-enable_processing_unique_visitors_multiple_sites = 1
+enable_processing_unique_visitors_multiple_sites = 0
 
 ; The list of periods that are available in the Matomo calendar
 ; Example use case: custom date range requests are processed in real time,
diff --git a/tests/UI/expected-screenshots/UIIntegrationTest_admin_diagnostics_configfile.png b/tests/UI/expected-screenshots/UIIntegrationTest_admin_diagnostics_configfile.png
index 03ffb96887d..f90818653d1 100644
--- a/tests/UI/expected-screenshots/UIIntegrationTest_admin_diagnostics_configfile.png
+++ b/tests/UI/expected-screenshots/UIIntegrationTest_admin_diagnostics_configfile.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:0d5ab1fb97f68102fca57d3bc55235b6a5e63733c4b5bedde9b2cdb1da7f77dc
-size 4224819
+oid sha256:87360f5222f27304819732abfe576f4a67fd9b51828199bc2256488496e6813c
+size 4224996