Just as a heads up, it looks like the Nuclear Stack Inserter from "Tech tree plus" might mess with this mod, and while it was solved on their end they suggested I let you know it might be an issue as well:

[[ Failed to load mods: Error while running setup for entity prototype "long-stack-inserter" (inserter): next_upgrade target (nuclear_stack_inserter) must have the same fast_replaceable_group (inserter != long-inserter). ]]

Crashing on load is technically preferable to the patch that they made, since the crash makes it obvious that there is an unsupported inserter that I need to add to my sorting and upgrade functions.

Annoyingly, they use a different format than literally every other mod that adds inserters (using underscores in the item name instead of the standard dashes), which means I can't easily use my copy inserter function that creates a long variant, turning what could have been a 2-minute full compatibility patch into a 10-minute partial compatibility patch instead.

They also should not set a dependency on this mod, since this is expected to run after every other mod adds their own inserters as a final patch job. Their mod also appears to be incompatible with both vanilla's Sandbox mode (basically creative mode), and Editor Extensions, which on top of them not following standard Factorio formatting, makes me doubt the quality of their mod.

I would honestly recommend playing with a different "additional tiers" mod, like One More Tier, Bob's Mods (even a partial set of Bob's Mods, if you don't want the changes introduced by the Resources, Intermediates, Modules, and Electronics mods), or Extended Vanilla

Regardless, I added a minor partial compatibility patch that simply re-sorts their nuclear inserters. No long variants will be made of these inserters as they do not follow the proper name format, and I am entirely unwilling to rewrite the primary copy function of this mod to accommodate a single mod that adds 1-2 inserters. Implemented in v5.1.3