Freeze Issue: Particle POP(Birth Attribute)

POPs
1

Hello,

I was following along with this YouTube tutorial on POPs to study:

I’m running into an issue where TouchDesigner consistently freezes when I try to use the ‘Input Birth Attribute’ in the Particle POP and select my custom attribute named ‘Emit’.

Additionally, I experience another freeze if I change the ‘Emission From’ parameter to ‘Birth Attribute’ and then try to switch it back to ‘Birth Rate’.

I was running this with the latest build 2025.33070 on a Windows PC.

I’ve attached my project file here. Could you please take a look?
Input_Birth_Attribute_problem.toe (4.7 KB)

Thanks in advance!

2

Hi @Ken024

thanks for sending this bug over, we are having a look.

cheers
Markus

3

Hello @Ken024
Recent changes introduced a crash that occurs whenever the Particle POP exits an error state. In your specific case, this error is triggered when no attribute name is provided while switching to Birth Attribute mode.

As a temporary workaround, you can avoid the crash by bypassing the operator before switching modes. This issue will be fully resolved in our next build.