[2.0.28] Biochamber with in-progress pentapod produces nothing at all after spoil time expires

[tearphones]

Not sure if this is intended mechanic or not, but a biochamber that has been producing pentapod eggs and runs out of nutrient charge will produce nothing at all if resumed after the spoil time expires for the pentapod egg already used up in the recipe.

Steps:

1. Set up a biochamber, set recipe to yumako processing. Give it one fresh nutrient as fuel, and 7 yumako fruit to process. This will use up most of the nutrient charge as it processes them all
2. Change the recipe on the biochamber to pentapod egg. Feed the machine one fresh pentapod egg, 30 nutrients in the recipe box, and connect a source of water. As control, put another pentapod in a chest nearby with a bunch of turrets pointed at it. The biochamber will begin processing the pentapod recipe but run out of nutrient charge, as expected.
3. Wait 15 mins. The control egg in the chest will hatch and be killed by the turrets.
4. Feed the biochamber a few more nutrients as power source. It will complete processing the recipe, but it will not produce anything as output. No egg, no enemy, not even spoilage. Just ... nothing at all.

Expected:
[*] Either the in-recipe-use pentapod hatches into an enemy, or a fresh pentapod is produced.

factorio-current.log

(8.56 KiB) Downloaded 13 times

[Muche]

Welcome to the forum, and thank you for the report.

Duplicate of 118557 Hand crafting Yumako processing recipe results in unexpected stack spoilage value / 122057 Items begin to spoil before they are finished crafting.

[tearphones]

Thank you for approving my post, @Muche!

Duplicate of

I suspect the second link (122057) is a better candidate to dupe this against. However note that the spoil results of a pentapod egg is supposed to be an enemy. In that post, the user got a bunch of Spoilage. In this case I got nothing - no enemy, no spoilage.

[Muche]

Indeed.
The egg-spoiling-in-void-into-nothing looks related to 124647 spoil_to_trigger_result not triggered (egg also uses spoil_to_trigger mechanism).