Yep, I just copied and pasted directly from the tag set. This is the error I get:

These relationship tags in your request are not allowed in this challenge: Jīn Guāngyáo/Mò Xuányǔ (Módào Zǔshī), Jin Guangyao/Xue Yang | Xue Chengmei (Modao Zushi)

I get that for the MDZS fandom. Every other pairing I submitted for MDZS is fine. Clearly, this is discrimination against poor Jin Guangyao. 😂