Tripwire can be seen through blocks next to the world border with Fabulous! graphics

Can confirm. Additionally, the world border interferes with the brightness of the tripwire.

Relates to MC-187669.

From my take on the code, the culprit may be the tripwire's render type compositing "output state" set as "weather target", compared to the typical block translucent render type which is "translucent target". Testing this change did resolve tripwire appearance.

Can confirm in 21w41a.

Can confirm in 21w43a.

Also present in 1.18 pre-release 1

The issue still exists in version 1.21.1

Thank you for your report!
We suspect that this does not occur in the latest version of Minecraft.

Is this issue present in the latest version of Minecraft?

_{This issue is being temporarily resolved as Awaiting Response. Once the requested information has been delivered, the report will be reopened automatically.}

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As of 26.1-snapshot-3, the reported behavior no longer occurs.