Normally when selecting a filter (e.g. in the quickbar), only items that you have researched will be shown. With Reverse Factory mod enabled, any item created by a recycling recipe will also be shown from the start of the game.

Below I've linked to screenshots of selecting a quickbar filter with and without Reverse Factory enabled. Enabling Reverse Factory mod shouldn't affect this at all.
https://imgur.com/a/tDl5pTa

It's a simple fix though! The recipes created by Reverse Factory mod should have unlock_results = false

https://wiki.factorio.com/Prototype/Recipe#unlock_results

Ahh, that makes a lot of sense, and it does look like it should be an incredibly simple fix. I've never actually noticed that issue in-game, because I always set my filters manually, by dragging and dropping the item directly onto the hotbar lol. I guess I just assumed it was supposed to show all of the items in the game, since that's the way it's always appeared to me... but maybe that's because I've always run this mod when I play lmao.

I'll be able to fix this later tonight, thanks for the solution!

No worries. Thanks for the quick response! 🙂

Was this suppose to fix hidden filter select ? cause if it was i still miss mk5 Power Armour
https://cdn.discordapp.com/attachments/697564089907675217/964795270627999744/unknown.png thanks before hand. this might be bound to other mods doing some similar too.

You've partially fixed it. Need to set that property on normal and expensive too!

me or him ?

Him

Ahh, I didn't realize it would need to be applied to both.. slightly annoying, but hopefully that should be fixed as of v8.1.7

Maybe third time lucky? For normal and expensive, you're setting unlock_results = true rather than unlock_results = false.

....that one's my bad, I was just rushing through that update. Okay, NOW it should be fixed as of v8.1.8

Looks good! Thanks again for looking at this.