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Participant
March 7, 2025

SubstanceConnector module stuck while shutting down in Unreal Engine

  • March 7, 2025
  • 2 replies
  • 227 views

Hello,

We have recently upgraded to the most recent version of Unreal Engine Substance plugin for Unreal Engine 5 and are hitting another issue that is intermittent. It seems on occassion when we run a multi cook process, the worker process(es) is getting stuck while shutting down. From what we have been able to see, it's getting stuck in 

Component::Impl::shutdown() (SubstanceConnectorComponentImpl.cpp)

at the call 

Substance::Connector::Framework::shutdown();

We are unsure as to why this might be happening as it does not reliably reproduce but is happening frequent enough to where it causes the cook process to hang until its forcefully disconnected.

Unreal Engine version is 5.5.3

We would appreciate any help, thank you.

2 replies

Community Manager
March 12, 2025

Thanks for reaching out! Are there any circumstances where we see this issue more frequently to help us reproduce?

Also, are you able to share the console log when the issue occurs? 

What OS are you on?

Are you building this for a specific platform?