The Glide Rail variants (Vines, Wires, and Lights) do not appear correctly in the game. They all remain as the default Glide Rail.

[locutus]

Hello, there were some reports about this already and Epic also mentioned it as a known issue when the language is not set as English:

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Using a grind rail with visual style set as vine and showing vine in uefn editor but not in game !

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Summary Hello everyone, I have a problem on UEFN. For my school, I have to create a map in one week. But there’s an issue: I want to use the rails that players can slide on, but to fit my map, I want them to look like vines. When I place them and change their design, they appear as vines in UEFN, but not in the game. I’m working in a group with several people, and none of us can see the vines in the game. Some of us see the vines in UEFN, while others don’t even have the correct design in UEFN. …

I experienced it myself last month when I was changing English to some other languages to see what exactly is actually changing. And I never experienced it when I have language set as English.