[2.0.15] Negative Signals Generated by Space Platform Hub When Inventory Slots Switch

[Carbon112000]

1. What did you do?
I set up a Space Platform Hub where items are added and removed from its inventory using inserters or rocktets from planet. I also configured a logistic request for items and/or used Auto request missing construction materials and set up a silo on the planet below to read orbital requests from the Hub.

2. What happened?
When items move in and out of the Hub inventory, the items shift slots dynamically. During these slot changes, the Hub sends a signal equal to the logistic and construction request amount minus the current inventory count for a split second. This causes the silo on the planet to receive a negative signal spam for the item whenever the inventory slots change and there is more of that item in SPace Hub inventory than it is set in logistic/construction request.

3. What did you expect to happen instead?
The Space Platform Hub should not send any signal if the inventory count for the item meets or exceeds the requested amount, regardless of slot changes. This would prevent the rocket silo from receiving an unintended negative signal.

4. Frequency of occurrence:
The issue occurs every time items in the Space Platform Hub inventory are rearranged dynamically.

5. Steps to reproduce the issue:

Set up a Space Platform Hub with a logistic request for items and/or construction request.
For example configure inserters to add and remove items from the Hub, dynamically changing the inventory slots.
Set up a silo on the planet below to read orbital requests from the Hub.
Observe the signals received by the silo, especially when items in the Hub exceed the requested amount and item slots in hub are rearranged.

6.Additional Context:

Game Version: Tested on [2.0.15] and experimental version [2.0.16]; bug persists in both.
Platform: PC
Mods: Issue persists even when loaded without mods.

7. Temporary Fix:

A workaround is to filter the signals from the rocket silo to only allow positive signals, preventing the unintended negative signal from affecting the silo

8. Attachments:

This is what I mean by shifting slots dynamically on Space Hub:

Space_Hub_Item_Slot_Shift_Factorio.mp4

(19.7 MiB) Downloaded 17 times

Forever negative signals spam when slots in Space Hub are shifting and there is more of that item in inventory than reqest:

Negative_Signal_Spam_Factorio.mp4

(30.34 MiB) Downloaded 19 times

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