Congradulations on your second child and I hope you are getting some good nights sleep!
I've been playing trying to reproduce and I have two mac's connected to a flow running on a Rpi (Pi 3 Model B Rev 1.2 running Buster) and I'm not having any issue.
Can you export your flow and attach it to a reply and how big is the file you are trying to play?
In order to make code readable and usable it is necessary to surround your code with three backticks (also known as a left quote or backquote ```)
```
code goes here
```
You can edit and correct your post by clicking the pencil 
icon.
See this post for more details - How to share code or flow json
