Well, if you don't collect any of the relic weapons from spoils of war etc until you are much higher level they scale. All the way to lv68
they also repeat...possibly randomly? I've had a few versions of the Tamer (you can also get the recipe, which I assume also scales?). I wish this were the same, for me anyway, for the DLC armor sets. Everyone tells me they scale, but even activating the DLC at later levels, the armor is still levels 5, 10, 16 for the new sets (not the Wolf Witcher set--the region sets you buy from vendors). Don't know why I am not seeing them scale.
The very nice Steel sword which I mentioned--not the Arbitrator. I just checked, different sword--I've seen 3 times now, at different levels. The level of the stats are randomized of course, but you have the chance to get 80 armor penetration and 75% crit damage. That is effing nuts. Wish I recall the name; I eventually sold my last one to free up weight and can't find it in the crafter's stock that I most likely sold it too, but it comes with a half scabbard, so you see the blade when it is on your back. Haven't found a recipe for it, so I hope it exists somewhere.
another bug--possibly the same as earlier, which was supposed to be fixed, but I can't craft runes from the runes that I have long collected. I know there was an alchemy issue with mutagens and whatnot, that could be "fixed" by dropping and picking up, but for example: I can not craft an Igni glyph from and of the lesser Igni Glyphs in my bag.
I have 24 lesser Igni Glyphs that I never used, and have been hoarding since release. the crafter does not recognize any of them in my bag, when trying to craft the next step. Likewise for some of the runestones. ...but Axxi glyphs, I can craft from my lesser glyphs...likewise with some runestones.
On top of this, I have several that aren't stacking: 2 stacks of 1 Svarog runsetone each, and a stack of 5 svarog runsetones, for example.
Is this an issue of collecting them during different patches, items not being able to stack with earlier patch version, not recognized by current patch crafter? It's quite annoying...especially now that I finally want to fill upgrade slots on my armor and weapons (never needed it, tbh), and I can't.