Loading Fabulous shaders failing

Game states that minecraft:shaders/post/transparency.json is missing key vertex in MapLike on resourcepacks that were working on previous versions.

Full breakdown:
Failed to parse shader config at minecraft:shaders/post/transparency.json
com.google.gson.JsonSyntaxException: No key fragment in MapLike[{"targets":["swap1","swap2","swap3","swap4","translucent","itemEntity","particles","clouds","weather",{"name":"temporals1","width":16,"height":1,"bilinear":false},{"name":"temporals2","width":16,"height":1,"bilinear":false}],"passes":[{"name":"fov_calc","intarget":"temporals1","outtarget":"swap2","auxtargets":[{"name":"DiffuseDepthSampler","id":"minecraft:main:depth"}],"uniforms":[{"name":"Range","values":[64.0]}]},{"name":"fov_calc1","intarget":"swap2","outtarget":"swap3","uniforms":[{"name":"Tolerance","values":[100.0]},{"name":"Reject","values":[3.0]}]},{"name":"fov_calc2","intarget":"swap3","outtarget":"swap2","uniforms":[{"name":"Tolerance","values":[90000.0]}]},{"name":"preprocess","intarget":"temporals1","outtarget":"temporals2","auxtargets":[{"name":"ExposureSampler","id":"swap1"},{"name":"SkySampler","id":"minecraft:main"},{"name":"SkyDepthSampler","id":"minecraft:main:depth"},{"name":"FOVSampler","id":"swap2"}],"uniforms":[{"name":"FOVGuess","values":[70.0]}]},{"name":"copy","intarget":"temporals2","outtarget":"temporals1"},{"name":"water_blur","intarget":"translucent","outtarget":"swap1","uniforms":[{"name":"BlurDir","values":[1.0,0.0]},{"name":"BlurSize","values":[0.01]}]},{"name":"water_blur","intarget":"swap1","outtarget":"swap2","uniforms":[{"name":"BlurDir","values":[0.0,1.0]},{"name":"BlurSize","values":[0.01]}]},{"name":"water_norm","intarget":"swap2","outtarget":"swap1","auxtargets":[{"name":"DiffuseDepthSampler","id":"translucent:depth"}],"uniforms":[{"name":"BlurSize","values":[4.0]}]},{"name":"water","intarget":"minecraft:main","outtarget":"swap2","auxtargets":[{"name":"DiffuseDepthSampler","id":"minecraft:main:depth"},{"name":"TranslucentSampler","id":"translucent"},{"name":"TranslucentDepthSampler","id":"translucent:depth"},{"name":"TranslucentHeightSampler","id":"swap1"},{"name":"TemporalSampler","id":"temporals1"}]},{"name":"composite1","intarget":"translucent","outtarget":"swap1","auxtargets":[{"name":"TranslucentDepthSampler","id":"translucent:depth"},{"name":"DiffuseDepthSampler","id":"minecraft:main:depth"},{"name":"ItemEntitySampler","id":"itemEntity"},{"name":"ItemEntityDepthSampler","id":"itemEntity:depth"},{"name":"ParticlesSampler","id":"particles"},{"name":"ParticlesDepthSampler","id":"particles:depth"},{"name":"WeatherSampler","id":"weather"},{"name":"WeatherDepthSampler","id":"weather:depth"},{"name":"CloudsSampler","id":"clouds"},{"name":"CloudsDepthSampler","id":"clouds:depth"}]},{"name":"composite2","intarget":"minecraft:main","outtarget":"swap3","auxtargets":[{"name":"DiffuseDepthSampler","id":"minecraft:main:depth"},{"name":"TranslucentSampler","id":"translucent"},{"name":"TranslucentSpecSampler","id":"swap2"},{"name":"TranslucentDepthSampler","id":"translucent:depth"},{"name":"ParticlesSampler","id":"particles"},{"name":"ParticlesDepthSampler","id":"particles:depth"},{"name":"PartialCompositeSampler","id":"swap1"},{"name":"ItemEntityDepthSampler","id":"itemEntity:depth"},{"name":"WeatherDepthSampler","id":"weather:depth"},{"name":"CloudsDepthSampler","id":"clouds:depth"}]},{"name":"fxaa","intarget":"swap3","outtarget":"swap2","uniforms":[{"name":"SpanMax","type":"float","count":1,"values":[8.0]},{"name":"SubPixelShift","type":"float","count":1,"values":[0.25]},{"name":"ReduceMul","type":"float","count":1,"values":[0.2]}]},{"name":"exposure_apply","intarget":"swap2","outtarget":"swap1","auxtargets":[{"name":"TemporalSampler","id":"temporals1"}]},{"name":"bloom","intarget":"swap1","outtarget":"swap2"},{"name":"tonemap","intarget":"swap2","outtarget":"minecraft:main"},{"name":"blur","intarget":"minecraft:main","outtarget":"swap1","uniforms":[{"name":"BlurDir","values":[1.0,0.0]},{"name":"Radius","values":[7.0]}]}]}]; No key vertex in MapLike[{"targets":["swap1","swap2","swap3","swap4","translucent","itemEntity","particles","clouds","weather",{"name":"temporals1","width":16,"height":1,"bilinear":false},{"name":"temporals2","width":16,"height":1,"bilinear":false}],"passes":[{"name":"fov_calc","intarget":"temporals1","outtarget":"swap2","auxtargets":[{"name":"DiffuseDepthSampler","id":"minecraft:main:depth"}],"uniforms":[{"name":"Range","values":[64.0]}]},{"name":"fov_calc1","intarget":"swap2","outtarget":"swap3","uniforms":[{"name":"Tolerance","values":[100.0]},{"name":"Reject","values":[3.0]}]},{"name":"fov_calc2","intarget":"swap3","outtarget":"swap2","uniforms":[{"name":"Tolerance","values":[90000.0]}]},{"name":"preprocess","intarget":"temporals1","outtarget":"temporals2","auxtargets":[{"name":"ExposureSampler","id":"swap1"},{"name":"SkySampler","id":"minecraft:main"},{"name":"SkyDepthSampler","id":"minecraft:main:depth"},{"name":"FOVSampler","id":"swap2"}],"uniforms":[{"name":"FOVGuess","values":[70.0]}]},{"name":"copy","intarget":"temporals2","outtarget":"temporals1"},{"name":"water_blur","intarget":"translucent","outtarget":"swap1","uniforms":[{"name":"BlurDir","values":[1.0,0.0]},{"name":"BlurSize","values":[0.01]}]},{"name":"water_blur","intarget":"swap1","outtarget":"swap2","uniforms":[{"name":"BlurDir","values":[0.0,1.0]},{"name":"BlurSize","values":[0.01]}]},{"name":"water_norm","intarget":"swap2","outtarget":"swap1","auxtargets":[{"name":"DiffuseDepthSampler","id":"translucent:depth"}],"uniforms":[{"name":"BlurSize","values":[4.0]}]},{"name":"water","intarget":"minecraft:main","outtarget":"swap2","auxtargets":[{"name":"DiffuseDepthSampler","id":"minecraft:main:depth"},{"name":"TranslucentSampler","id":"translucent"},{"name":"TranslucentDepthSampler","id":"translucent:depth"},{"name":"TranslucentHeightSampler","id":"swap1"},{"name":"TemporalSampler","id":"temporals1"}]},{"name":"composite1","intarget":"translucent","outtarget":"swap1","auxtargets":[{"name":"TranslucentDepthSampler","id":"translucent:depth"},{"name":"DiffuseDepthSampler","id":"minecraft:main:depth"},{"name":"ItemEntitySampler","id":"itemEntity"},{"name":"ItemEntityDepthSampler","id":"itemEntity:depth"},{"name":"ParticlesSampler","id":"particles"},{"name":"ParticlesDepthSampler","id":"particles:depth"},{"name":"WeatherSampler","id":"weather"},{"name":"WeatherDepthSampler","id":"weather:depth"},{"name":"CloudsSampler","id":"clouds"},{"name":"CloudsDepthSampler","id":"clouds:depth"}]},{"name":"composite2","intarget":"minecraft:main","outtarget":"swap3","auxtargets":[{"name":"DiffuseDepthSampler","id":"minecraft:main:depth"},{"name":"TranslucentSampler","id":"translucent"},{"name":"TranslucentSpecSampler","id":"swap2"},{"name":"TranslucentDepthSampler","id":"translucent:depth"},{"name":"ParticlesSampler","id":"particles"},{"name":"ParticlesDepthSampler","id":"particles:depth"},{"name":"PartialCompositeSampler","id":"swap1"},{"name":"ItemEntityDepthSampler","id":"itemEntity:depth"},{"name":"WeatherDepthSampler","id":"weather:depth"},{"name":"CloudsDepthSampler","id":"clouds:depth"}]},{"name":"fxaa","intarget":"swap3","outtarget":"swap2","uniforms":[{"name":"SpanMax","type":"float","count":1,"values":[8.0]},{"name":"SubPixelShift","type":"float","count":1,"values":[0.25]},{"name":"ReduceMul","type":"float","count":1,"values":[0.2]}]},{"name":"exposure_apply","intarget":"swap2","outtarget":"swap1","auxtargets":[{"name":"TemporalSampler","id":"temporals1"}]},{"name":"bloom","intarget":"swap1","outtarget":"swap2"},{"name":"tonemap","intarget":"swap2","outtarget":"minecraft:main"},{"name":"blur","intarget":"minecraft:main","outtarget":"swap1","uniforms":[{"name":"BlurDir","values":[1.0,0.0]},{"name":"Radius","values":[7.0]}]}]}]
at com.mojang.serialization.DataResult$Error.getOrThrow(DataResult.java:287)
at glx.a(SourceFile:133)
at glx.a(SourceFile:72)
at glx.b(SourceFile:39)
at avq.a(SourceFile:12)
at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1812)
at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1804)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:507)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1458)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:2034)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:189)