Why doesn't DMX Previs Sample work in new version 5.8

Summary

After installing 5.8 and uninstalling 5.7.4, deleting the 5.7 DMX Previs Sample then recreating and updating, it still freezes and I have to end task to quit Unreal engine. 5.7.4 worked just fine. Why doesn’t 5.8 function correctly with DMX? are there special instructions? I am not a programmer, therefore I need instructions, accordingly, please.

What Type of Bug are you experiencing?

Other

Steps to Reproduce

see above

Expected Result

a DMX Previs Sample that works with 5.8

Observed Result

Unreal 5.8 freezes after clicking the play button

Affects Versions

5.8

Platform(s)

Windows

Video

n/a

For crash reports, include your callstack

n/a