abigail/player ghosts visual/functional bug

There are two sides to this bug, and I am relatively sure that the bug is on my wifes side due to the exact circumstances, which I will now describe.

When my wife hosted a server while playing as wendy, attempting to summon abigail resulted in her not appearing at all. wendy performed the summoning animation, but abigail seemingly did not appear. When abigail was dismissed via the interaction menu, the summon option did not reappear on abigails flower.

When my wife joined a server I was hosting (as an attempt to find a workaround) abigail was correctly summoned, but completely invisible from my wife's POV, while appearing normally to me the host. She seemingly functioned correctly, but only appeared to my wife when performing actions (attacking, doing an animation, etc). The same problem with dismissal also occured, with abigail becoming unreachable opon being dismissed. 

Later, in a server hosted by my wife, she was playing wickerbottom, while I was playing WX-78, I died, and was completely invisible as a ghost from my wifes point of view. I was also completely unable to move until I left and reloaded the server. I am not certain that this bug is related, but it feels related due to the similar symptoms.

to note, I am attaching the dxdiag.txt from my wife's computer, as I can use wendy/abigail just fine on my own server.

DxDiag.txt