Older Posts Code Blocks are broken

It appears that on older posts the code blocks are completely broken. For example https://developer.apple.com/forums/thread/678075 show the code block as a single inline value. Looking at the HTML this is what I see generated

<code class="hljs block shell language-shell">Code Block shell#!/bin/bashrm -rf output/rm -rf simulator_fat/mkdir simulator_fatlibs=( "lib_static"  ) #Add for i in "${libs[@]}"do   lipo -create arm64_simulator/$i.a x86_64/$i.a -output simulator_fat/$i.a   xcodebuild -create-xcframework -library simulator_fat/$i.a -library arm64/$i.a -output output/$i.xcframeworkdone</code>

Obviously newer code blocks seem to be working (as long as the one above is) but it wreaks havoc trying to look at older posts.