My current problem is, that I have an embed that mentions certain users. These users are getting pinged and everything works fine, but if I look at the embed from my mobile or any other device, that doesn't have the users stored in its cache, the mentions get replaced by "@invalid-user" or "<@!", because a mention doesn't save users to the cache.
Users get stored into the cache of devices by sent messages, them appearing in the member list, and some other stuff like through the search bar. Is there any way I can store a certain user into every device that sees my embed message?