For me, this mod only worked properly when I disabled all the other mods...which means it would not work on any of my saved games.
There is no crash or warning, it's just that the tech tree does not get properly modified,
The only mod I had that effected the tech tree directly was the one for making synthetic bioflux.
When you look at the L1 qual module in the tech tree, it does indeed list the Recycler as being unlocked, but when you then look at the Recycling tech, it shows as unmodded, i.e, you need the Fulgora tech and to mine a vault ring.
What I would really like is a mod that treats legendary , epic and L3 qual modules as if playing a non-Space Age game...you still have to earn those techs but you don't need other planets to do so.

Did the bug occur with the planets disabled? What would unlock t3 quality instead of Fulgora?

Nothing was disabled except for the 20+ mods that I had been using. Only the Wube's mods (Base, Quality, Elevated Rails, Recycler, Space Age) were enabled.

The answer to your second question is a rather simple answer that I discovered while playing around and testing out Factorio: To earn T3 qual modules and Legendary while still on Nauvis (but without using a mod), simply start the game without Space Age. Play until your base acquires those techs, then Save, then Exit and enable the Space Age mod, then load the Save game. Enabling the Space Age mod on a saved game will not take away techs that have already been discovered. Note, however, that I have not played a full game using this method. I tested this by starting a game, giving myself all techs (using a mod), then saving, then exiting and enabling Space Age and then reloading that save. I then looked at the tech tree.

I don't consider your mod to be bugged. It's not uncommon for some mods to not be compatible with others, and also not unheard of that some mods can cause strange effects when used on a Save game that has many hours in it.

Without a modlist I can't find out why it's not working. Regarding the alternative unlock I need an actual gameplay replacement not some workaround reopening the game.

Sorry, I thought you were asking about the unlocking in a general sense.

Here is a mod list, using the Mod List UI mod.

0.4.0 - AAI Containers & Warehouses - aai-containers
0.8.0 - AAI Vehicles: Ironclad - aai-vehicles-ironclad
0.2.9 - Air Scrubber - air-scrubber
0.7.6 - Bigger Artillery (2.1 Port) - alexx-bigger-artillery
2.1.0 - Artillery Equality for Vanilla Only - artillery-equality
2.1.0 - Artillery Visibility 2.1 - artillery-visibility-2_1
1.1.0 - Artillery Shell Stack - ArtilleryShellStack
1.1.2 - Auto Deconstruct - AutoDeconstruct
2.1.23 - Base mod - base
4.2.1 - Biter Cleanup - biter-cleanup
3.3.0 - Blueprint Sandboxes - blueprint-sandboxes
1.0.1 - Circuit Visualizer Fork - circuit_visualizer_fork
1.2.0 - Easy Oil Recipes - EasyOilRecipes
2.6.1 - Editor Extensions - EditorExtensions
2.1.23 - Elevated Rails - elevated-rails
1.0.2 - Epic quality on Fulgora - epic-quality-fulgora
3.2.0 - Even Pickier Dollies - even-pickier-dollies
1.0.0 - Explosive Artillery Fork - explosive-artillery-fork
1.15.0 - Factory Search - FactorySearch
2.1.0 - Filter Mining Drills - FilterMiningDrills
0.17.2 - Factorio Library - flib
0.4.4 - Gleba Pentapods on Nauvis - gleba-on-nauvis-port
1.0.0 - Go Green - go-green
1.0.1 - Improved Robots - improved-robots
2.2.25 - Factorio Standard Library - kry_stdlib
0.2.2 - Railgun artillery - ldinc_railgun_artillery
1.0.2 - Legendary quality on Fulgora - legendary-quality-fulgora
0.3.1 - Loader Mini 1x1 And Box - loader_mini_1x1
21.3.0 - Manual Inventory Sorting - manual-inventory-sort
1.0.2 - Map Reveal Tool for 2.1 - map-reveal-tool-for-21
2026.10.11 - Modlist UI - modlist-ui
2024.12.14 - More Module Slots - more-module-slots
0.0.32 - My Quick Start - MyQuickStart
0.1.3 - Nuclear Scorch Decay - nuclear-scorch-decay
2.3.0 - Omnimover - omnimatter_move
2.0.0 - Pollution module - pollution-module
3.4.3 - Quality of Life research (2.1 fork) - qol_research-21
2.1.23 - Quality - quality
2.1.1 - Realistic Artillery Shells - RealisticArtilleryShells
2.1.23 - Recycler - recycler
9.2.6 - Reverse Factory - reverse-factory
2.1.23 - Space Age - space-age
2.0.5 - K2_TurretsFixed - super_awesome_K2_TurretsFixed-new
1.0.1 - Synthetic Bioflux - synthetic-bioflux-port
2.1.0 - Teleporters - Teleporters
1.3.0 - Turret Range Buff - Percentage - turret_range_tweaker
2.1.2 - Waterfill - Waterfill_v17

Got a save file?

Sorry, no. I finished and started another scenario.