Multicast task has been killed

[geezer]

Fog Version 1.6.0-alpha.999
Ubuntu Server 20.04

Regular tasks works just fine.
When I am creating multicast task it exists for no longer than 10 seconds. Then just disappears.

That is from multicast.log

[07-09-20 4:09:35 am] * No new tasks found
[07-09-20 4:10:05 am] * No new tasks found
[07-09-20 4:10:35 am] * No new tasks found
[07-09-20 4:11:05 am] * No new tasks found
[07-09-20 4:11:35 am] * No new tasks found
[07-09-20 4:12:05 am] * No new tasks found
[07-09-20 4:12:35 am] * No new tasks found
[07-09-20 4:13:05 am] | Task ID: 1 Name: Name2 is new
[07-09-20 4:13:05 am] DirectoryIterator::__construct() expects exactly 1 parameter, 2 given
[07-09-20 4:13:35 am] | Task ID: 2 Name: Multi-Cast Task - test_multicast 2020-07-09 04:13:33 is new
[07-09-20 4:13:35 am] DirectoryIterator::__construct() expects exactly 1 parameter, 2 given
[07-09-20 4:14:05 am] | Task ID: 2 Name: Multi-Cast Task - test_multicast 2020-07-09 04:13:33 is no longer running
[07-09-20 4:14:05 am] | Task ID: 2 Name: Multi-Cast Task - test_multicast 2020-07-09 04:13:33 has been killed
[07-09-20 4:14:05 am] | Task ID: 1 Name: Name2 has been completed
[07-09-20 4:14:05 am] | Task ID: 1 Name: Name2 has been killed
[07-09-20 4:14:05 am] | Task ID: 2 Name: Multi-Cast Task - test_multicast 2020-07-09 04:13:33 is now completed
[07-09-20 4:14:05 am] | Task ID: 1 Name: Name2 is now completed
[07-09-20 4:14:35 am] * No new tasks found
[07-09-20 4:15:05 am] * No new tasks found
[07-09-20 4:15:35 am] * No new tasks found
[07-09-20 4:16:05 am] * No new tasks found
[07-09-20 4:16:35 am] * No new tasks found

Need your help. Thanks.