Even when we find a sinomacrops and it makes hearts and lands to be fed, and we have chitin in the hotbar 0 slot, there's no option to feed them. The "press E to feed chitin" message does not appear. We aren't using any kind of trap or anything. The sino will sit there for quite a while, and we've tried circling around it to get different angles, but no one on my server has been able to feed one.
I tested in single player and did NOT have this issue, even with all the same mods enabled, so I don't think it's a mod conflict.
Would love to hear if anyone has a fix or even a theory about what's causing this. Any suggestions would be much appreciated---thanks!
UPDATE: We are now able to feed them. I have no idea what changed, but that part is working now. We haven't successfully tamed any yet, for all the reasons discussed in other threads. I don't know if this taming mechanic is broken or if it's just intended to be very, very difficult. Either way, I think we're going to try taming them a different way with the Immersive Taming mod. Best of luck to everyone!