multiple Authors Name - Endnote mixes them

Hello guys, 

it would be great, if you could help me, using Endnote 20.

Multiple authors with first names have an outputstyle with mismatches my input:


Littlefield, T.R.

Kelly, K.M.

Endnote creates:

T. R. K. Littlefield, K.M.

I leave no space after the Initials … 

Do you have any help or ideas?

I would be very thankfull, because that issue costs a lot of time …

Many greetings and a happy sunday,