This is kind of a limitation by design, but the reason is that the flowscript is treated as an action that can take time to complete (if for example you had some Wait node in there) and actions are not retriggered as part of a Dynamic Sequencer or Selector. If actions where to be retriggered, that might potentially lead up to multiple actions being active at the same time under the Dynamic Sequencer or Selector which should not happen. If multiple actions are required to be active at the same time, then a Parallel node might be what you need.
If you use a Parallel node in place of a sequencer on the left, then both the nested flowscript and the action will be constantely executed in parallel.
Please let me know if the Parallel node works for you.
Thanks
Gavalakis
