I wanted to try having an "Initialization" group where I create and set all of the variables I'll later need in the flow. However, using the Set variable blocks with Custom and Text as its value stops the flow from executing completely.

As you can see on the attached screenshot, I put a Text Bubble that says "Hi" before initialization, which displays when previewing the bot, but the Text Bubble that says "variables initialized" (or anything that comes after) is never executed.

I suspect this is a bug with the Set variable block that might break the flow's execution.