Firstly, your issues setup is a bit misleading, it presents bug reports options for 1.18 and 1.19 but current version is 1.20 but the goes on to say that only submit reports for latest version... So i guess add whatever tags and labels you want.. because selecting 1.19 would be inacurate

So i'm on ATM 9 latest version 0.0.51 for MC 1.20.1 FS vers 1.2.2 and it has this issue where on a world load none of the itmes in a FS drawer system are visable to a RS system until i break and reconnect the cable.. This has been posted on RS issues more than once since 2020 and they have started saying its not their problem it's yours.. (typical) i don't know who's issue it is but i just want to make it known so it can be fixed.

UPDATE: I'm leaning to this being a RS problem because the same thing happens with Sophisticated Storage barrels..

Good to know have you reported it to them?

Well, I haven't YET reported it to them, but it has been reported by several other people and they just keep trying to pass the blame.. But i will try to bring it back up with them soon