1. build emacs 26 with --with-x-toolkit=gtk3
2. login to windows box, launch ssh -X putty session to linux host with
emacs 26 installed.  (windows xserver: vcxsrv or xming) 
3. emacs -Q
4. emacs does not display correctly. Missing minibuffer, & can't type in buffer.  Compare to attached screenshot.

I can compile Emacs 26.1 RC1 ok, and use it locally on the host fine.

However, when attempting to ssh -X to host via PuTTY 0.70 and launch the
Emacs gui (emacs -Q), emacs is not displaying correctly. See attached screenshot -
no default welcome screen, and missing minibuffer too. Using Windows
xserver program VcXsrv (1.19.6.3).