When I was using Fast Slim Loader in the factory, I set up product screening, but it didn't take effect and all the products were mixed into boxes.

I tried using Fast Slim Loader directly between two boxes, but the filtering function for items is still ineffective.

The configuration in my factory is the py series module, and there is no formula for Basic Slim Inserter. Only the formula for Fast Slim Loader can be used. I did not test whether other modules can screen items normally.

Unfortunately, I cannot reproduce this. my sorter works. (space-age, no big contents mods)
I have no much time to test py. I can try to fix compatibility crashes, but i don't want to revert changes of other mods without knowing them.
if another mod removes recipes, then the other mod should no longer do so ;-)

<a href="https://ibb.co/SmXtTMv"><img src="https://i.ibb.co/pKvfDMX/00.png" alt="00" border="0"></a>
<a href="https://ibb.co/kKCfKW0"><img src="https://i.ibb.co/fMw5MPt/11.png" alt="11" border="0"></a>
<a href="https://ibb.co/tLcQTFC"><img src="https://i.ibb.co/XYpjrMJ/22.png" alt="22" border="0"></a>
I retested and only kept space and Kuxynator's Slim Inserters, Fast Slim Loader still cannot filter. I set up a whitelist for the iron plates, but he also packed the copper plates into the box. Fast Slim Inserter is working properly for filtering, Fast Slim Loader is not filtering. Is there anything wrong with the settings of my mod?
This is my first time posting pictures here, and the settings may not be quite right.

sorry, something went wrong with the last update, the fix was not yet included in 3.0.20
try it now.

It can now work normally, thank you.