Basically what the title say, since installing the DLC I have killed three dragons and can't absorb their souls. This is particularly problematic since the last one I killed was the one at Kynesgrove with Delphine and part of the quest seems to be triggered by absorbing the dragons soul. The only change I've made recently was installing Dragonborn, none of my other mods caused any problems so I can only assume it is caused by Dragonborn.

How do you know that your mods are not causing problems?

From what I've been hearing, this could be a problem with the Unofficial Skyrim Patch. If you have the USP you'll probably have to wait for a patch or for them to release an Unofficial Dragonborn Patch. Otherwise, if you can't wait, you'll have to deactivate it somehow (not sure if its a plugin or what, I never used it) or uninstall it for the time being.

IF YOU DON'T have the Unofficial Skyrim Patch and I've just been helping you with absolutely nothing, Then i'm sorry....

...I'll just leave.

EDIT: oh, nvm, There is an Unofficial Dragonborn Patch up http://skyrim.nexusmods.com/mods/31083. Even if you don't have the Unofficial Patches, it would be a good idea to install these, or at least see if it works, you can always uninstall later

It could be a mod conflicting with Dragonborn, but everything worked perfectly before Dragonborn, so it is involved.

I can do more testing later, but for now I'm kind of hoping someone has a general idea of what cause this kind of problem as it occasionally popped up even before mods even existed.

Please use the existing topic here: http://www.gamesas.com/topic/1441564-cant-absorb-dragon-souls/