JOIN all with condition

Hi.

In my workflow I have a task with two condition that can call 2 separate tasks base on condition result.and then I have a barrier_task to wait for all previous task to be finished and then move to next task.

When my task condition is calling both tasks and both tasks calling barrier_task workflow is working and barrier_task will wait until both tasks will finish and then move to next tasks but problem is , when my condition is calling one of two tasks and then that task call barrier_task , workflow will fail and the error is this

"errors": [
{
"type": "error",
"message": "UnreachableJoinError: The join task|route "barrier_task|0" is partially satisfied but unreachable.",
"task_id": "barrier_task",
"route": 0
}
]

Is there a fix for these problem please ?

thanks

Reproduce the workflow with a conditional task, two possible downstream tasks, and barrier_task, first taking both branches and then taking only one. Start from the reported UnreachableJoinError and compare how the join behaves in each case; done means the selected branch can reach barrier_task successfully while the both-branches case continues to wait for both tasks.