[Android Apps and Games] erdokovyz:
I haven't seen any application UI at all, only the [SABS has stopped] popup in front of the home screen. The Gradle Console shows the following warnings:

warning: Supported source version 'RELEASE_7' from annotation processor 'android.arch.persistence.room.RoomProcessor' less than -source '1.8'
(...)\sabs\db\entity\AppPermission.java:18: warning: policyPackageId column references a foreign key but it is not part of an index. This may trigger full table scans whenever parent table is modified so you are highly advised to create an index that covers this column.
public class AppPermission {
(...)\sabs\db\entity\BlockUrl.java:20: warning: urlProviderId column references a foreign key but it is not part of an index. This may trigger full table scans whenever parent table is modified so you are highly advised to create an index that covers this column.
public class BlockUrl {
(...)\sabs\db\entity\BlockUrlProvider.java:20: warning: policyPackageId column references a foreign key but it is not part of an index. This may trigger full table scans whenever parent table is modified so you are highly advised to create an index that covers this column.
public class BlockUrlProvider {
(...)\sabs\db\entity\DisabledPackage.java:16: warning: policyPackageId column references a foreign key but it is not part of an index. This may trigger full table scans whenever parent table is modified so you are highly advised to create an index that covers this column.
public class DisabledPackage {
(...)\sabs\db\entity\FirewallWhitelistedPackage.java:17: warning: policyPackageId column references a foreign key but it is not part of an index. This may trigger full table scans whenever parent table is modified so you are highly advised to create an index that covers this column.
public class FirewallWhitelistedPackage {
(...)\sabs\db\entity\UserBlockUrl.java:23: warning: policyPackageId column references a foreign key but it is not part of an index. This may trigger full table scans whenever parent table is modified so you are highly advised to create an index that covers this column.
public class UserBlockUrl {
(...)\sabs\db\entity\WhiteUrl.java:23: warning: policyPackageId column references a foreign key but it is not part of an index. This may trigger full table scans whenever parent table is modified so you are highly advised to create an index that covers this column.
public class WhiteUrl {
(...)\sabs\db\entity\DisabledPackage.java:16: warning: policyPackageId column references a foreign key but it is not part of an index. This may trigger full table scans whenever parent table is modified so you are highly advised to create an index that covers this column.
public class DisabledPackage {
(...)\sabs\db\AppDatabase.java:51: warning: Schema export directory is not provided to the annotation processor so we cannot export the schema. You can either provide `room.schemaLocation` annotation processor argument OR set exportSchema to false.
public abstract class AppDatabase extends RoomDatabase {

Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
10 warnings

After the initial app closing popup I can see the black and white S icon in the app list. After every package rename I uninstalled the previous one so I only had a single icon at any time.