I got the following interface display problem in Mac OS X 10.11.5 for the latest Houdini apprentice 10.0.481.

I'm using iMac 21.6inch late 2015 which is connected to a Dell U2715H monitor.

This problem shows up when the houdini interface is displayed on the Dell monitor, not when it is displayed on the iMac screen.

Appreciate your advice on how to solve this problem!

… BTW, I just checked and it seems there is no such problem when using Houdini 14.0.644 on my iMac.

So, this is definitely a problem for the latest Houdini 15.x.xxx

Thanks Silvina of the Houdini support team for her suggestion to solve this issue!

You can also try setting HOUDINI_ENABLE_RETINA=0 in your environment as a workaround to this issue.

For example, on Mac OSX, open the Houdini Terminal and in the terminal start houdini by typing:
export HOUDINI_ENABLE_RETINA=0
houdini

You can also try setting this variable in your houdini.env file for a more permanent solution.