Bug: Show file won't export (Hog 4 PC 3.21.1)

When I try to export my show, I get:

 

Fatal Error

 

Error: Trap: 'it==m_pal_map.end() is TRUE

File: C:\jenkins-agent\workspace\lec\h4-software\hog4_3-20-x\gut\components\lightinglayer\showitems\programming\export_look.cpp (Jul 31 2024) , Line: 289

Version: v3.21.1 (b 3657)

 

Stack trace for server process, thread 2152:

 

Then it says:

 

The active show server [server] has failed. No backup server has been detected. For more information, please consult the network window.