How to handle large inputs into the Text Translator Api? - microsoft-cognitive

Question

I am working on a cognitive skillset in Azure Search, and I need to add Text Translator functionality to the project. Currently all of the text is translated correctly, unless the character count is above the maximum value. In which case, the api returns null.
I am currently using document/content as my input for the text translator, but I've also tried using the output of the predefined Split Skill. When I pass the files through the Split Skill (by page) before the translator skill, the indexer breaks and all of the files fail to index (even the ones that don't need to be translated)
This code taken from my skillset.json that translates all of the files below the character limit cutoff.
{
"#odata.type": "#Microsoft.Skills.Custom.WebApiSkill",
"description": "Our new translator custom skill",
"uri": "[my-uri]",
"batchSize":1,
"context": "/document",
"inputs": [
{
"name": "text",
"source": "/document/content"
},
{
"name": "language",
"source": "/document/languageCode"
}
],
"outputs": [
{
"name": "text",
"targetName": "translatedText"
}
]
}
This is my attempt to split the text by page before passing the text through the translator api. This results in a 501 error.
{
"#odata.type": "#Microsoft.Skills.Text.SplitSkill",
"textSplitMode" : "pages",
"maximumPageLength": 4000,
"inputs": [
{
"name": "text",
"source": "/document/content"
},
{
"name": "languageCode",
"source": "/document/languageCode"
}
],
"outputs": [
{
"name": "textItems",
"targetName": "pages"
}
]
},
{
"#odata.type": "#Microsoft.Skills.Custom.WebApiSkill",
"description": "Our new translator custom skill",
"uri": "[my-uri]",
"batchSize":1,
"context": "/document/pages/*",
"inputs": [
{
"name": "text",
"source": "/document/pages/*"
},
{
"name": "language",
"source": "/document/languageCode"
}
],
"outputs": [
{
"name": "text",
"targetName": "translatedText"
}
]
}
I use the exact same implementation for the Named Entity Recognition Skill (using document/pages/* as input), and it works fine. I'm not sure what the difference would be with the Text Translator skill.