Hi @GoatedTibo ,
It seems the issue is due to a limitation or bug in how UEFN renders barriers when they are scaled to a very large size. Several users have reported that when using dimensions like 100×100×100, the devices simply don’t render properly in published islands, even though they appear correctly in the editor. It’s an inconsistent behavior that has been observed across recent versions, so it looks like a known issue.
There are a few posts mentioning the same thing:
In the meantime, there doesn’t seem to be a definitive solution if you want to keep that size.
Hope it Helps!