I never noticed that Bob's Adjustable Inserters had been updated months ago. They aren't really intended to be used together, but from my testing, they don't actually cause an error on load. While running them together does defeat the purpose of this mod, there was technically no issue between them, with or without space age, with just Bob's Inserters or with the entire suite of Bob's mods.
There might be a startup setting that breaks things? Or another mod that's causing the issue, but at default settings, no issues between the two.
Ah, I remember now, looking back at my own code, there was never an issue with the Adjustable Inserters mod, but when Bob's Logistics is enabled alongside More Long Inserters, if Bob's inserter overhaul setting is enabled (which it is by default), then this mod makes no changes to the game. When the inserter overhaul setting is disabled, this mod should be able to copy the inserters normally, so this is technically a bug and should be fixable.
Now knowing the entire suite of Bob's Mods has been updated to 2.0, I'm gonna have to make a ton of updates for all my mods... guess I might as well start with this one.