I work in Android studio and I want to save midi files to the internal memory of the device, but when I try to do this, the data is recorded incorrectly and the classic player cannot open it, but the file opens well in musescore

here is my code for writing a midi file to a regular file

    public void writeToFile(File outFile) throws IOException
    {
        FileOutputStream fout = new FileOutputStream(outFile);

        fout.write(IDENTIFIER);
        fout.write(MidiUtil.intToBytes(6, 4));
        fout.write(MidiUtil.intToBytes(mType, 2));
        fout.write(MidiUtil.intToBytes(mTrackCount, 2));
        fout.write(MidiUtil.intToBytes(mResolution, 2));

        for(MidiTrack T : mTracks)
        {
            T.writeToFile(fout);
        }

        fout.flush();
        fout.close();
    }

everything works in IntelliJ IDEA, but not in Android studio. This happens even when I try to just write the file unchanged

        try {
            midiFile = new MidiFile(file);
            midiFile.writeToFile(file);
        } catch (IOException e) {
            Log.d("midifile", "open failed");
        }