function checkForMalformedRevs(patch, loglabel, startFrom) {
  let text;
  let errors = []
  let dateRegex = [/^.* ([0-9][0-9]:[0-9][0-9]:[0-9][0-9]) GMT+.*/g, "$1"];
  console.log('[' + loglabel + ']', Date().replace(/ \(GMT+.*\)/g, ""), 'Check Started.');
  patch.forEach((a,i) => {
    if (i < startFrom) return;
    let pi = diffStuff._patchesToRevision(patch, i);
    let x = 0;
    let offset = 0;
    try {
      for (x = 0; x < pi.length; x += 100) {
        offset = (!!pi.substring(x, x + 100).match(/%.$/g) * 1) + (!!pi.substring(x, x + 100).match(/%$/g) * 2); // checks if there's any "chopped" URI characters at the end of the chunk to prevent `URI malformed` errors just because of that
        text = pi.substring(x, x + 100 + offset)
        let decoded = decodeURI(text);
        decoded = '';
        text = '';
        x += offset;
        offset = 0;
      }
      console.log('[' + loglabel + ']', Date().replace(...dateRegex), 'Checked:', i);
      x = 0;
    } catch (err) {
      console.error('[' + loglabel + ']', Date().replace(...dateRegex), 'Error:', i, 'at chunk', x + '-' + (x + 100 + offset), 'of', pi.length, err, 'Chunk Text:', text);
      errors.push({date: new Date(diffStuff.patches[i].creationTime), log: loglabel, revisionId: i, chunkRange: `${x}-${x + 100 + offset}`, revisionLength: pi.length, text: text});
      
    }
  })
  console.log('[' + loglabel + ']', Date().replace(/ \(GMT+.*\)/g, ""), 'Check Complete.');
  console.table(errors, ['date', 'text']);
}
checkForMalformedRevs(diffStuff.modelTextPatches, 'modelTextPatches')
// checkForMalformedRevs(diffStuff.outputTemplatePatches, 'outputTemplatePatches')

Here is a code that also outputs the Date of the Revision as well as the Text that was throwing the error neatly in a table. It seems ONLY the modelTextPatches are throwing the malformeds.