Implementing Custom Activity on Clover Mini

I'm trying to launch an Activity from an app that I've installed on a Clover Mini. For this task, I'm using the .Net SDK

https://docs.clover.com/build/custom-activities-for-clover-mini

I've followed the steps, but the Activity never gets launched. Inspecting Logcat I've found the following error:

I/AsyncRemoteMessageConduit( 1667): sendACK(RemoteProducerUtil.java:38): sendACK: message = RemoteMessage{id='2', type=COMMAND, packageName='com.clover.remote.protocol.usb', method='ACTIVITY_REQUEST', payload='{"version":1,"action":"com.mycompany.TestActivity","payload":"","nonBlocking":false,"forceLaunch":false,"method":"ACTIVITY_REQUEST"}', remoteSourceSDK='com.clover.cloverconnector.windows_CloverSDK|USB:1.4.1', remoteApplicationID='MY_SECRET_CODE'}

I/ ( 1667): onMessageReceived: message = RemoteMessage{id='2', type=COMMAND, packageName='com.clover.remote.protocol.usb', method='ACTIVITY_REQUEST', payload='{"version":1,"action":"com.mycompany.TestActivity","payload":"","nonBlocking":false,"forceLaunch":false,"method":"ACTIVITY_REQUEST"}', remoteSourceSDK='com.clover.cloverconnector.windows_CloverSDK|USB:1.4.1', remoteApplicationID='MY_SECRET_CODE'}

I/RemoteTerminalKioskActivity( 4153): unsafeOnReceive(RemoteControlClient.java:101): Received Intent { act=com.clover.remote-terminal.remotecontrol.action.V1_ACTIVITY_REQUEST flg=0x20000010 (has extras) } Bundle[com.clover.remote.terminal.remotecontrol.extra.EXTRA_PAYLOAD=, com.clover.remote.terminal.remotecontrol.extra.REMOTE_SOURCE_SDK_VERSION=1.4.1, com.clover.remote.terminal.remotecontrol.extra.REMOTE_TRANSPORT=usb, com.clover.remote.terminal.remotecontrol.extra.ACTION=com.mycompany.TestActivity, com.clover.remote.terminal.remotecontrol.extra.EXTRA_NON_BLOCKING=false, com.clover.remote.terminal.remotecontrol.extra.REMOTE_PAY_VERSION=1.0-199, com.clover.remote.terminal.remotecontrol.extra.EXTRA_FORCE_LAUNCH=false, com.clover.remote.terminal.remotecontrol.extra.REMOTE_APPLICATION_ID=MY_SECRET_CODE, com.clover.remote.terminal.remotecontrol.extra.REMOTE_MESSAGE_ACTION=activity_request, com.clover.remote.terminal.remotecontrol.extra.CUSTOM_ACTIVITY=com.mycompany.TestActivity, com.clover.remote.terminal.remotecontrol.extra.REMOTE_SOURCE_SDK=com.clover.cloverconnector.windows_CloverSDK|USB]

I/KioskStateMachine( 4153): transitionToState(KioskStateMachine.java:647): state transition: IDLE -> ACTIVITY_REQUEST

I/RemoteTerminalKioskActivity( 4153): sendRemoteTerminalBroadcast(RemoteControlClient.java:832): Sending Intent { act=com.clover.remote.terminal.remotecontrol.action.V1_UI_STATE (has extras) } Bundle[com.clover.remote.terminal.remotecontrol.extra.UI_DIRECTION=ENTER, com.clover.remote.terminal.remotecontrol.extra.UI_TEXT=com.mycompany.TestActivity, com.clover.remote.terminal.remotecontrol.extra.INPUT_OPTIONS=[], com.clover.remote.terminal.remotecontrol.extra.UI_STATE=STARTING_CUSTOM_ACTIVITY]

E/SettingsDefaults( 1775): getFallbackDefaultValue(SettingsDefaults.java:37): Error - fallback to defaults for BILINGUAL_PRIMARY_LANGUAGE_TAG

I/RemoteTerminalKioskActivity( 4153): onActivityRequest(RemoteTerminalKioskActivity.java:1234): Starting Custom Activity. Intent = Intent { act=com.mycompany.TestActivity cat=[com.clover.cfp.ACTIVITY] (has extras) } Bundle[com.clover.remote.terminal.remotecontrol.extra.EXTRA_PAYLOAD=, com.clover.remote-terminal.remotecontrol.action.V1_MESSAGE_TO_ACTIVITY=com.mycompany.TestActivity.MessageToActivity, com.clover.remote-terminal.remotecontrol.action.V1_MESSAGE_FROM_ACTIVITY=com.mycompany.TestActivity.MessageFromActivity]

I/ActivityManager( 867): Resuming app switches, calling UID: 10077, calling PID: 4153

I/ActivityManager( 867): Resuming app switches for requesting UUID: 10077

I/RemoteTerminalKioskActivity( 4153): startCustomActivityForResult(RemoteTerminalKioskActivity.java:1062): startCustomActivityForResult, requestCode = 501

I/ActivityManager( 867): START u0 {act=com.mycompany.TestActivity cat=[com.clover.cfp.ACTIVITY] (has extras)} from pid 4153

I/TerminalUsbAccessoryService( 1667): onUiState(RemoteMessageControlService.java:1255): ui state: STARTING_CUSTOM_ACTIVITY, ui name: com.mycompany.TestActivity, ui direction: ENTER, input options: []

I/RemoteTerminalKioskActivity( 4153): startCustomActivityForResult(RemoteTerminalKioskActivity.java:1083): startCustomActivityForResult, Exception

I/RemoteTerminalKioskActivity( 4153): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=com.mycompany.TestActivity cat=[com.clover.cfp.ACTIVITY] (has extras) }

I/RemoteTerminalKioskActivity( 4153): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1632)

I/RemoteTerminalKioskActivity( 4153): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1424)

I/RemoteTerminalKioskActivity( 4153): at android.app.Activity.startActivityForResult(Activity.java:3439)

I/RemoteTerminalKioskActivity( 4153): at com.clover.remote.terminal.kiosk.RemoteTerminalKioskActivity.startCustomActivityForResult(RemoteTerminalKioskActivity.java:1078)

I can confirm that the mentioned activity can be launched by other android apps installed on the device.

Has anybody work with this before?

Thank you very much for your help.