runtime error code -17600 when using packed libraries - bug?

[pawhan11]

Hello,

What might cause error 17600 - failed to load module?

This error happens only sometimes, tends to appear when using multiple UUT entry point. First execution is always ok, next one is problematic

All code modules used in sequences are packed project libraries and there is no possibility that module is missing.

Module that throws error uses factory pattern to load other modules also in packed libraries. 

Why from TestStand perspective this function might appear broken for next execution?