Robot Arms filtering on keep exact still not working

[Shikifuyin]

Checked for existing issues

• I have checked for existing issues, and have found none.

Tested latest version

• I have checked that this occurs on the latest version.

GregTech CEu Version

1.6.4

Minecraft Version

1.20.1 Forge

Recipe Viewer Installed

JEI

Environment

Multiplayer - Dedicated Server

Cross-Mod Interaction

No

Other Installed Mods

ATM9 modpack
This goes way back and was never fixed in Nomifactory or GTNH (in those cases items could be voided if transfer rate > 1 and not a divisor of
filtered counts)

Expected Behavior

Using a robot arm on keep exact mode with a filter on whitelist (either on pipe with extract or on machine with inport).
At least two distinct items, say A and B, in the whitelist, each with a specified count (equal or not), say X and Y.
Target inventory/machine should receive exactly X amount of item A and Y amount of item B.

Actual Behavior

The first considered count (last in reading order in the filter IIRC) acts as the amount of total items.
Say X is considered, the machine receives a total of X items in an arbitrary combinations (whichever are supplied first) of items A and B.
Y is ignored.
The behaviour is normal if only one item is filtered, but as soon as two items are filtered one starts to see this issue.

Steps to Reproduce

A good test example would be the sulfur dust+raw rubber dust recipe in a chemical reactor.
Setup a chemical reactor (CR) and two input sources (chests with conveyors or machines with auto output), one with sulfur dust,
the other with raw rubber dust. Connect all 3 with item pipes.
Setup a robot arm, either on the CR in import mode, or on a pipe at the CR in export mode (bug happens in both cases).
Set the robot arm in keep exact mode.
Add a whitelist filter to the robot arm with both sulfur dust and raw rubber dust with their respective counts.
(either same counts, say 32 and 32 or distinct counts, say 2 and 18)

Additional Information

This is likely caused by an algorithmic error when looping through filtered items while book-keeping
transfered item amounts and checking against per-item exact counts.

[BryanSer]

I've encountered the same problem.