diff --git a/HISTORY.rst b/HISTORY.rst
index 8ede7429..7ee070c6 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -14,6 +14,7 @@ PlatformIO Core 5
 - Added an error selector for `Sublime Text <https://docs.platformio.org/en/latest/integration/ide/sublimetext.html>`__ build runner (`issue #3733 <https://github.com/platformio/platformio-core/issues/3733>`_)
 - Generate a working "projectEnvName" for PlatformIO IDE's debugger for VSCode
 - Force VSCode's intelliSenseMode to "gcc-x64" when GCC toolchain is used
+- Print ignored test suites and environments in the test summary report only in verbose mode (`issue #3726 <https://github.com/platformio/platformio-core/issues/3726>`_)
 
 5.0.2 (2020-10-30)
 ~~~~~~~~~~~~~~~~~~
diff --git a/platformio/commands/test/command.py b/platformio/commands/test/command.py
index 13104bb2..a4b6634f 100644
--- a/platformio/commands/test/command.py
+++ b/platformio/commands/test/command.py
@@ -177,7 +177,7 @@ def cli(  # pylint: disable=redefined-builtin
     if without_testing:
         return
 
-    print_testing_summary(results)
+    print_testing_summary(results, verbose)
 
     command_failed = any(r.get("succeeded") is False for r in results)
     if command_failed:
@@ -222,7 +222,7 @@ def print_processing_footer(result):
     )
 
 
-def print_testing_summary(results):
+def print_testing_summary(results, verbose=False):
     click.echo()
 
     tabular_data = []
@@ -236,6 +236,8 @@ def print_testing_summary(results):
             failed_nums += 1
             status_str = click.style("FAILED", fg="red")
         elif result.get("succeeded") is None:
+            if not verbose:
+                continue
             status_str = "IGNORED"
         else:
             succeeded_nums += 1
diff --git a/platformio/package/manager/library.py b/platformio/package/manager/library.py
index 2843e9ba..9f8bd28a 100644
--- a/platformio/package/manager/library.py
+++ b/platformio/package/manager/library.py
@@ -127,7 +127,13 @@ class LibraryPackageManager(BasePackageManager):  # pylint: disable=too-many-anc
             for key, value in dependency.items()
             if key in ("authors", "platforms", "frameworks")
         }
-        return self._install(spec, search_filters=search_filters or None, silent=silent)
+        try:
+            return self._install(
+                spec, search_filters=search_filters or None, silent=silent
+            )
+        except UnknownPackageError:
+            pass
+        return None
 
     def uninstall_dependencies(self, pkg, silent=False):
         assert isinstance(pkg, PackageItem)