writeFile() after write('base64') corrupts table

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Please specify what version of the library you are using: [ 3.4.0 ]

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Observed Behavior

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Sample powerpoint generation demonstrating issue.

let ppt = new pptxgen();
let slide = ppt.addSlide();
slide.addTable([
    [
        { text: '1', options: { colspan: 4, color: 'FFFFFF', fill: '000000', border: { pt: 1, color: 'FFFFFF' } }},
        { text: '2', options: { colspan: 4, color: 'FFFFFF', fill: '000000', border: { pt: 1, color: 'FFFFFF' } }},
        { text: '3', options: { colspan: 4, color: 'FFFFFF', fill: '000000', border: { pt: 1, color: 'FFFFFF' } }}
    ],
    [
        { text: '4', options: { colspan: 3, color: 'FFFFFF', fill: '000000', border: { pt: 1, color: 'FFFFFF' } }},
        { text: '5', options: { colspan: 3, color: 'FFFFFF', fill: '000000', border: { pt: 1, color: 'FFFFFF' } }},
        { text: '6', options: { colspan: 3, color: 'FFFFFF', fill: '000000', border: { pt: 1, color: 'FFFFFF' } }},
        { text: '7', options: { colspan: 3, color: 'FFFFFF', fill: '000000', border: { pt: 1, color: 'FFFFFF' } }}
    ],
    [
        { text: '8', options: { colspan: 4, color: 'FFFFFF', fill: '000000', border: { pt: 1, color: 'FFFFFF' } }},
        { text: '9', options: { colspan: 4, color: 'FFFFFF', fill: '000000', border: { pt: 1, color: 'FFFFFF' } }},
        { text: '0', options: { colspan: 4, color: 'FFFFFF', fill: '000000', border: { pt: 1, color: 'FFFFFF' } }}
    ]
]);
ppt.writeFile('expected');
ppt.write('base64').then(data => { ppt.writeFile('bugged1'); });
ppt.write('base64'); ppt.writeFile('bugged2');

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STATUS: Confirmed using latest method opts

let ppt = new PptxGenJS();
let slide = ppt.addSlide();

slide.addTable([
  [
    { text: "1", options: { colspan: 4, color: "FFFFFF", fill: "000000", border: { pt: 1, color: "FFFFFF" } } },
    { text: "2", options: { colspan: 4, color: "FFFFFF", fill: "000000", border: { pt: 1, color: "FFFFFF" } } },
    { text: "3", options: { colspan: 4, color: "FFFFFF", fill: "000000", border: { pt: 1, color: "FFFFFF" } } },
  ],
  [
    { text: "4", options: { colspan: 3, color: "FFFFFF", fill: "000000", border: { pt: 1, color: "FFFFFF" } } },
    { text: "5", options: { colspan: 3, color: "FFFFFF", fill: "000000", border: { pt: 1, color: "FFFFFF" } } },
    { text: "6", options: { colspan: 3, color: "FFFFFF", fill: "000000", border: { pt: 1, color: "FFFFFF" } } },
    { text: "7", options: { colspan: 3, color: "FFFFFF", fill: "000000", border: { pt: 1, color: "FFFFFF" } } },
  ],
  [
    { text: "8", options: { colspan: 4, color: "FFFFFF", fill: "000000", border: { pt: 1, color: "FFFFFF" } } },
    { text: "9", options: { colspan: 4, color: "FFFFFF", fill: "000000", border: { pt: 1, color: "FFFFFF" } } },
    { text: "0", options: { colspan: 4, color: "FFFFFF", fill: "000000", border: { pt: 1, color: "FFFFFF" } } },
  ],
]);

ppt.writeFile({ fileName: "expected" });
ppt.write({ outputType: "base64" }).then((_data) => ppt.writeFile({ fileName: "expected" }));
ppt.write({ outputType: "base64" });
ppt.writeFile({ fileName: "bugged2" });

gitbrent / PptxGenJS