Build 27888 DR Freeze

[ricoholmes]

Hello
Using the stable build 27888 (7dec) causes extraordinary freezes when DR is used, and I can't seem to trace what's causing it in the output log.

Any scene - I've tried a wide range
Local rendering is fine

Engage DR = black VFB for around 6-7 minutes with no visual feedback or log update.
( looks like it's crashed, basically) then, tadaaa! it starts rendering.

I know that's very little to work with, but note that I've only seen it on build 27888 (the latest). 27796 is perfectly sound.


I only mention it as that build has been around a few weeks now (and goodness only knows you guys are super busy on NEXT )

[vlado]

Can you get us a full log file of one such render? Is there anything specific in the setup - i.e. is the local machine used for rendering or not? Do you have any Cryptomatte elements in the scene?

Best regards,
Vlado

[Mihail.Djurev]

Just shooting in the dark here, do you have Viewport IPR running at the same time?
Also do you have a cryptomatte render element in your scene when this happens?

[ricoholmes]

Unfortunately no log available at the moment, as I posted it at a ridiculous time (we're just closing up for Xmas!). I may Teamview in to the studio over the holiday when I get a chance. The only things to note from you questions were:

No local machine used
No Cryptomatte
Not scene specific- had tried a good few different projects.

Again, I know that's completely useless, I'm sorry.

[Mihail.Djurev]

Could you make sure that both your render host and your render server have the exact same version?

[ricoholmes]

Just noticed reply came out of sequence (That you'd replied in the meantime Mihai).

Good catch ! Yes I'd forgotten to mention that it was during IPR rendering (I usually find it more stable/predictable when rendering Cuda). Not viewport IPR however.. VFB

[ricoholmes]

Could you make sure that both your render host and your render server have the exact same version?

The issue happens when they are exactly the same version.

FYI - when I went back to the earlier version 27796 on the HOST the pause issue went away regardless of all the server machines still being on 27888.