Setting "Wait for completion" flag to true causes child sub-processes to hang when it is called from a parent sub-process

Issue

• Imagine there are two sub-process that are being run inside Business Central execution server. One is SubProcessParent and another one is SubProcessChild. The SubProcessParent version gets stuck on the Reusable SubProcess node, which in turn calls another Sub-Process called SubProcessParent, without any hint of an error message or explanation. The interesting thing to note here is that the sub-process node which was calling the other sub-process was having Wait for completion property set to true. Is it something which could cause this issue? What is the workaround?