Body: <p>I have a .MP4 movie exported from Blender in 24fps in good quality, without any pixelation problems. In whatever movie player I open it, there are no pixelation problems.</p>
  
  <p>When I create a new project in Final Cut, also in 24fps, and I import the clip, and I play it in Final Cut as such, even in the Timeline viewer  (same problem after exporting from Final Cut), then <strong>every 18th or 19th frame gets pixelation problems</strong> as such:</p>
  
  <p><a href="https://i.sstatic.net/UkqVi.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/UkqVi.png" alt="ets "></a></p>
  
  <p>How to solve please? Should I prepare the Blender movie in another file format?</p>
  
  <p>For your reference, here is an undistorted frame:</p>
  
  <p><a href="https://i.sstatic.net/aUH0n.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/aUH0n.png" alt="enter image description here"></a></p>
  
  <p>The problem remains if I make a short (1-sec) small-resolution (550x550) sample.</p>
  
  <p>Again, the <strong>19th frame is distorted</strong>:</p>
  
  <p><a href="https://i.sstatic.net/rZE8x.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/rZE8x.png" alt="enter image description here"></a></p>
  
  <p>It should look more like this:</p>
  
  <p><a href="https://i.sstatic.net/4rURA.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/4rURA.png" alt="enter image description here"></a></p>
  
  <p>Here are my render settings for this small-resolution sample:</p>
  
  <p><a href="https://i.sstatic.net/mtikR.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/mtikR.jpg" alt="enter image description here"></a></p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-02-06T08:19:42.807Z
Comments.Text: This looks like "datamoshing", which happens when p, b and i-frames do not align properly. Which export settings did you use? Have you tried rendering a smaller portion again to see if the file is corrupted?
Comments.UserDisplayName: Florian Claaßen
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-02-06T18:24:24.920Z
Comments.Text: @FlorianClaaßen I have tried using a short small-resolution new render sample from Blender. The same problem occurs within Final Cut (see my updated answer). What can I do please? My render settings have also been included.
Comments.UserDisplayName: O0123
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-02-07T08:36:54.667Z
Comments.Text: Ah, I think I've got it. In the Video-settings, your Keyframe-intervals are set to 18 frames. For more information about keyframe intervals, this article was quite helpful to me: https://community.adobe.com/t5/premiere-pro/key-frame-distance-please-help/td-p/8993448?page=1
  I believe you should be able to resolve the issue by setting the interval to 1, thus placing a keyframe for each frame.
Comments.UserDisplayName: Florian Claaßen
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-02-08T16:48:16.233Z
Comments.Text: @FlorianClaaßen And is there no way to prevent this after importing some clip into Final Cut? Because the original video from Blender took 2 days to render.
Comments.UserDisplayName: O0123
Tags: <final-cut-pro-x><conversion><final-cut-pro><final-cut-express><non-square-pixels>
Title: Every 18 or 19 frames from an undistorted .MP4 clip gets pixelized when played via Final Cut
UserDisplayName: O0123
ThreadText: # Every 18 or 19 frames from an undistorted .MP4 clip gets pixelized when played via Final Cut
  
  (Asked by: username_0 on 2020-02-06)
  
  I have a .MP4 movie exported from Blender in 24fps in good quality, without any pixelation problems. In whatever movie player I open it, there are no pixelation problems.
  
  When I create a new project in Final Cut, also in 24fps, and I import the clip, and I play it in Final Cut as such, even in the Timeline viewer (same problem after exporting from Final Cut), then **every 18th or 19th frame gets pixelation problems** as such:
  
  [![ets ](https://i.sstatic.net/UkqVi.png)](https://i.sstatic.net/UkqVi.png)
  
  How to solve please? Should I prepare the Blender movie in another file format?
  
  For your reference, here is an undistorted frame:
  
  [![enter image description here](https://i.sstatic.net/aUH0n.png)](https://i.sstatic.net/aUH0n.png)
  
  The problem remains if I make a short (1-sec) small-resolution (550x550) sample.
  
  Again, the **19th frame is distorted**:
  
  [![enter image description here](https://i.sstatic.net/rZE8x.png)](https://i.sstatic.net/rZE8x.png)
  
  It should look more like this:
  
  [![enter image description here](https://i.sstatic.net/4rURA.png)](https://i.sstatic.net/4rURA.png)
  
  Here are my render settings for this small-resolution sample:
  
  [![enter image description here](https://i.sstatic.net/mtikR.jpg)](https://i.sstatic.net/mtikR.jpg)
  
  **Tags:** final-cut-pro-x, conversion, final-cut-pro, final-cut-express, non-square-pixels
  
  > **Comments:**
  > **username_1**: This looks like "datamoshing", which happens when p, b and i-frames do not align properly. Which export settings did you use? Have you tried rendering a smaller portion again to see if the file is corrupted?  
  > **username_0**: @username_1 I have tried using a short small-resolution new render sample from Blender. The same problem occurs within Final Cut (see my updated answer). What can I do please? My render settings have also been included.  
  > **username_1**: Ah, I think I've got it. In the Video-settings, your Keyframe-intervals are set to 18 frames. For more information about keyframe intervals, this article was quite helpful to me: https://community.adobe.com/t5/premiere-pro/key-frame-distance-please-help/td-p/8993448?page=1 I believe you should be able to resolve the issue by setting the interval to 1, thus placing a keyframe for each frame.  
  > **username_0**: @username_1 And is there no way to prevent this after importing some clip into Final Cut? Because the original video from Blender took 2 days to render.  
  
  ---
  
  ## 0 answers
  
  