1.) Have the host run the save solo, relocate the hub and try researching.
2.) Have the host pass you the save file, and you try step 1.
3.) If it still doesn't work, disable 'send game data' from the options and try 1 and 2 again.
I have tried all of these steps as the Host and I am still unable to research.
My Super computers are stuck, I tried researching a Harddrive thinking that may fix it but nada. The button is greyed out and it took my harddrive.