Spoiler for main quest: Esbern won't examine the wall, him and Delphine are stuck on the same dialogue, I have explored the whole place, and my last save to go before this
Esbern voice fix by Firestar 0507 at Skyrim Nexus - Mods and Community
Colin Burton on Twitter: "Check out the latest public information video by ColinBurtonPlays. "How to fix the Esbern/ Delphine Alduin's Wall bug in Skyrim" Watch Now: https://t.co/OMngdCnVi8 https://t.co/ZvZtqMPc43" / Twitter
Esbern Door Bug FIX Skyrim - YouTube
Skyrim:Esbern - The Unofficial Elder Scrolls Pages (UESP)
lol Esbern : r/skyrim
How to Find Esbern in Skyrim: 6 Steps (with Pictures) - wikiHow