Quote Originally Posted by Yora View Post
R8: Nondetection says "the target can't be targeted by any divination magic or perceived through magical scrying sensors." See invisibility targets the caster, not any invisible creatures that it might reveal. It also does not create a magical scrying sensor.
Therefore a creature affected by both nondetection and invisibility can be seen by a creature under the effect of see invisibility.
R8: You missed the first sentence, “For the duration, you hide a target that you touch from divination magic.”

https://www.sageadvice.eu/2016/10/27...ibility-spell/