Dayne Kolk

Thank you for sharing the solution - This fixed the same problem for me in Houdini 19.5

I ran into this problem too. My scene is rendered without GUI via hython and the environment variables are setup after the scene loads. However, I don't have access to the hython scripts, so I need my HDA to react to the changes automatically. I tried putting my callback code in OnLoad on my HDA, but the problem is that this executes when the scene loads (BEFORE hython has updated the variables).

$MYENV/somefile.json <-- Needs to execute code to re-import the data when the ENV changes programatically.

If anyone knows a way/hack to force the node to recook in response to the ENV change, it would be of great help!

Thanks.

I'm also very interested in this since I'm currently investigating my workflow options.
Did you find any solutions / explanations?