Well the title is fairly self-explanatory. The node for Combo party reads like this:

It seems pretty clear that it shouldn't trigger
when you're hit, since it clearly specifies
when your combo meter is lost:

I tried getting round it with Daredevil (HK) and noticed that his built-in combo meter didn't seem to save him:

I tried a different combo shield, using the Proxima/Aegon synergy, and that didn't work either:




So, what gives? Contrary to the text of Combo Party, these clearly show the buffs being lost and burst damage occurring,
without the combo meter dropping. Is this a bug, or does the phrase "if their combo meter is lost" need to be removed from the node description?