Corona 1.7 - DR error: Accumulating EXR from slave...

"DR error: Accumulating EXR from slave ‘192.168.1.5’ failed with error: Got lex:BaseExc: Error reading pixel data from image file “{memory}”. Unexpected data block y coordinate..
Please send this file to our support: C:\Users\Utente\AppData\Local\CoronaRender\dr-exr-fail.exr!

when I render a frame sequence, after a while I get this error.
What is this problem?

Is this happening consistently, or randomly?
Did you send the exr file to support as requested?
Cam you share the scene with us? Chaos

We have just released Corona Renderer 1.7 Hotfix 1: Renderer for architectural visualization - Corona | Chaos
It contains some important DR fixes, so please download and install it.
Please make sure that Corona Renderer 1.7 Hotfix 1 is installed on all computers, and that DR server 1.7 Hotfix 1 is running on all of the slaves.

If the issue will remain after installing this version, please contact us, and we will continue looking for a solution.