I downloaded and installed MuseScore on my PC. I tried playing the following fragment:

Here are my settings:

The steps I followed to construct this measure:

Treble clef:

1. Choose treble clef line by mouse (press around -).
2. Click Input note by name (N). Click Rest. Put it in first position on treble clef line.
3. Choose 3-rd Rest on treble clef line.
4. Click Input note by name (N). Then click Quarter note. Then click Tuplet, then Triplet.
5. Place Quarter notes at desired position.
6. Click 1-st Rest on treble clef line. Then click Augmented dot.

Bass clef:

1. Choose bass clef line by mouse (press around -).
2. Click Input note by name (N). Click Rest. Put it in first position on bass clef line.
3. Choose 2-nd Rest on bass clef line.
4. Click Input note by name (N). Then click Quarter note. Then click Tuplet, then Triplet.
5. Place Quarter notes at desired position.
6. Click 3-rd Rest on bass clef line. Then click Augmented dot.

Here is the result:

Is this correct?

I downloaded and installed MuseScore on my PC. I tried recreating the following fragment:

Here are my settings:

The steps I followed to construct this measure:

Treble clef:

1. Choose treble clef line by mouse (press around -).
2. Click Input note by name (N). Click Rest. Put it in first position on treble clef line.
3. Choose 3-rd Rest on treble clef line.
4. Click Input note by name (N). Then click Quarter note. Then click Tuplet, then Triplet.
5. Place Quarter notes at desired position.
6. Click 1-st Rest on treble clef line. Then click Augmented dot.

Bass clef:

1. Choose bass clef line by mouse (press around -).
2. Click Input note by name (N). Click Rest. Put it in first position on bass clef line.
3. Choose 2-nd Rest on bass clef line.
4. Click Input note by name (N). Then click Quarter note. Then click Tuplet, then Triplet.
5. Place Quarter notes at desired position.
6. Click 3-rd Rest on bass clef line. Then click Augmented dot.

Here is the result:

Why are there differences that I have marked in red? How can I fix the result?