Yup, I'm confused as well, in fact, I'm confused as hell
My Synthweaver has a Strength Augment from before 1.2, but it does not allow any RE (not selectable for RE). Afaik, Synthweavers make Strength augs now, so should be able to RE it ?
My Armstech has the same problem with RE'ing Endurance augs, i.e. not selectable.
My Artificer has all augments selectable for RE (regardless of stat type), but the only augs that don't show "No Research Available" in the tooltip are the Artifact quality ones (purple).
In addition, many of the pre 1.2 augs in my inventory now carry double stats, such as Endurance + Aim. According to the patchnotes, Endurance augs are made by Armstech, whereas Aim augs are made by Armormech. So where do these double-combo's come from ? Just a conversion glitch ?
This is not the scenario I expected from reading the patch notes...