The method publishMQTT(String, String) is undefined for the type ThingActions

Hey,
I’m using latest OH3 Snapshot.
I’m using new UI, and set rules in there.

After update to new snapshot I’m getting this errors from my rule :

2020-12-05 01:43:40.358 [ERROR] [internal.handler.ScriptActionHandler] - Script execution of rule with UID '256a1d2237' failed: Thread::sleep(60000)
val mqttActions = getActions("mqtt", "mqtt:broker:5aa2c65a64")
mqttActions.publishMQTT("/lampa-pod-tv/switch/cmd", "get")
mqttActions.publishMQTT("/lampa-sofa/switch/cmd", "get")
mqttActions.publishMQTT("/wlacznik2/switch2/cmd", "get")
mqttActions.publishMQTT("/wlacznik2/switch1/cmd", "get")
mqttActions.publishMQTT("/wlacznik1/switch/cmd", "get")
mqttActions.publishMQTT("cmnd/wlacznik-przedpokoj/POWER1", "get")
mqttActions.publishMQTT("cmnd/lampkidom/POWER", "get")
   1. The method publishMQTT(String, String) is undefined for the type ThingActions; line 3, column 96, length 11
   2. The method publishMQTT(String, String) is undefined for the type ThingActions; line 4, column 155, length 11
   3. The method publishMQTT(String, String) is undefined for the type ThingActions; line 5, column 212, length 11
   4. The method publishMQTT(String, String) is undefined for the type ThingActions; line 6, column 269, length 11
   5. The method publishMQTT(String, String) is undefined for the type ThingActions; line 7, column 326, length 11
   6. The method publishMQTT(String, String) is undefined for the type ThingActions; line 8, column 382, length 11
   7. The method publishMQTT(String, String) is undefined for the type ThingActions; line 9, column 448, length 11

rule is triggered with start of system.
and this is DSL rule script:

Thread::sleep(60000)
val mqttActions = getActions("mqtt", "mqtt:broker:5aa2c65a64")
mqttActions.publishMQTT("/lampa-pod-tv/switch/cmd", "get")
mqttActions.publishMQTT("/lampa-sofa/switch/cmd", "get")
mqttActions.publishMQTT("/wlacznik2/switch2/cmd", "get")
mqttActions.publishMQTT("/wlacznik2/switch1/cmd", "get")
mqttActions.publishMQTT("/wlacznik1/switch/cmd", "get")
mqttActions.publishMQTT("cmnd/wlacznik-przedpokoj/POWER1", "get")
mqttActions.publishMQTT("cmnd/lampkidom/POWER", "get")

What is wrong?

Is the Broker Thing ID correct?
Is the Broker Thing ONLINE at the time that this rule runs (both before and after the Thread::sleep)?

After updating to newest version of OH3 mqttActions are working. Still problem with triggering by start of system, but this is other problem.