P: Map and Web modules do not work correctly with 4K UHD monitor

[hmeek]

I recently upgraded to a 4k second monitor to replace a HD monitor.
I did work through various type size issues discussed elsewhere, and the Library, Develop and Book modules are working fine.
The Map and Web modules only partially redraw the main image window and are totally unusable. 
GPU acceleration has no effect. Nvidia GTX 860M driving the 4K UHD monitor via Display Port.

Looks like a bug of sorts to me.  Any ideas on fix or work around?

Thanks!

[Ganesh GD]

Thanks Harper for finding this bug. We are able to reproduce the same. We will work on this.

-Ganesh

[hmeek]

I have now run into what may be a related issue in the Develop module.  For same 4K monitor as above, when a .JPG is open in the Develop module, a similar redraw issue occurs after a zoom to 1:1 of 3:1.  This does not happen with either .TIF or .DNG, and it does not happen without the zoom to 1:1 or larger.  Other develop function appear OK. 

[Rikk Flohr: Photography]

This should be fixed in the CC2015.8/6.8 Update. Give it a try and let us know.