Hi.
I'm not naming the mod as yet, because I have contacted the designer to give them a chance to rectify the problem.
The mod was supposed to extend the time that smithing and enchanting potions lasted. I got it because I struggled to double enchant weapons and armour in the 30 second limit of my homemade potions that are stronger than any bought ones (+36%). The description only mentions the time and that this is affected by alchemy skill level and perks.
The mod worked but the resulting enchantments were significantly weaker than those I achieved before. +88 health fell to +78 health. Both enchantments suffered the same percentage drop in potency. I wear Azhidal's relics to get +10% enchanting and this fell to +5% when using the mod.
I uninstalled the mod but I still cannot enchant as well as I could before because Azhidal's relics have been permanently lowered in their effect to +5%.
Does anybody know of a way to use the console to restore the proper parameter to the relics? If not, I have to undo several hours of gameplay because I first used the mod to add a newly learned set of enchantments to a piece of jewellery. I was not aware of the fall in performance until I added an enchantment that I was familiar with to an item much later...several dungeons and legendary dragons later! I've also scrapped a full set of dragonscale armour and two dragonbone greatswords.
There's a lesson for me. Next time I add a mod I'll experiment with it using scenarios that I know fully, before I use it more widely.
The fault was definitely caused by this mod because it is the only one I have added for a long time and my other mods did not cause this effect.