Weird Hold Node issue

Hi

This works (and outputs data from the hold node):

While this doesn’t (and don’t output data from the hold node):

Any apparent reasons?

The second composition has a deadlocked feedback loop. I’m not sure why Vuo 1.2.3 doesn’t detect it, but our dev version of Vuo does, which is how I noticed. (Bug report: Error not shown for deadlocked feedback loop)

Here’s a simplified version of the composition, for which Vuo 1.2.3 does detect an error:
MDoesNotWork-reduce.png

Or, besides the error message in the screenshot, another way of thinking about it is that Vuo can’t tell which Hold node is supposed to be the one where the feedback loop starts and ends.

MDoesNotWork-reduce.vuo (1.45 KB)

Aha! Thanks for the explanation.