![Unknown Error" when attempting to build Eidolon lenses [Foundry related Bug?]; Screenshots inside. - UI - Warframe Forums Unknown Error" when attempting to build Eidolon lenses [Foundry related Bug?]; Screenshots inside. - UI - Warframe Forums](https://i.imgur.com/dSYCo0Q.jpg)
Unknown Error" when attempting to build Eidolon lenses [Foundry related Bug?]; Screenshots inside. - UI - Warframe Forums
![Unknown Error" when attempting to build Eidolon lenses [Foundry related Bug?]; Screenshots inside. - UI - Warframe Forums Unknown Error" when attempting to build Eidolon lenses [Foundry related Bug?]; Screenshots inside. - UI - Warframe Forums](https://i.imgur.com/UQenJIk.jpg)
Unknown Error" when attempting to build Eidolon lenses [Foundry related Bug?]; Screenshots inside. - UI - Warframe Forums
![School specific Eidolon lens BP from incursions are completely useless. DO NOT BUY THEM. : r/Warframe School specific Eidolon lens BP from incursions are completely useless. DO NOT BUY THEM. : r/Warframe](https://preview.redd.it/hnrlxyy81ivz.png?width=640&crop=smart&auto=webp&s=22012a906f5a3ef356d2336602770f97a610a319)
School specific Eidolon lens BP from incursions are completely useless. DO NOT BUY THEM. : r/Warframe
![People complain about ESO drop % while I'm here, after almost a year in the plains, without seeing any of these. : r/Warframe People complain about ESO drop % while I'm here, after almost a year in the plains, without seeing any of these. : r/Warframe](https://preview.redd.it/bz67vtuv2f911.png?width=640&crop=smart&auto=webp&s=8911b66d2020392527d4ea310fe0f9a0b96983f5)