No I am not able to reproduce, but I also don't have similar specs.

@Clément Foucault (fclem) we currently use GPU_RGBA8 perhaps we should plan a engine setting to use a high precision buffer for colors GPU_RGBA16F. What do you think?
will influence the color_buffer and the history_buffer

This is by design and has been working so for many years. The reasoning behind this is that when loading a big scene the screen will stall as it is initializing the renderer. To reduce the stall blender will switch back to solid mode and let the user decide if he wants this stall to happen.

Fixed matrices: currently a bit dump as every step in the evaluation is done as a separate matrix.

I see that holdout is not working as expected. You can say it was not working before as holdout influences the Z-buffer and therefore also influences the grid rendering and viewport rendering on multiple places.

The work around is to use viewport rendering. This does not have these artifacts. Only final rendering is not working.

Ok, during rendering the AA-buffers are incorrect. Changing AA quality will change the Alpha value to use. Note that Single pass AA and No AA will make the Alpha completely 0.0

Fixed matices

Added color management

Rebased with latest master. Due to recent changes the color managament of the bg pics needs to be reviewed.
The GPU_textures are scene_linear. So we need to perform the view transform, before performing the blending
to get similar results as before.

Seems like I am able to reproduce the issue. On Linux AMD Pro

Sorry wrong upload

I tried versions upto 1 month ago and was not able to find a version of blender 2.80 that exported the annotations as you describe it would with your given example file. In Blender 2.79 when running the same script as provided in your blend file, it also does not export the grease pencil layers.

Please try with the latest blender. It has been fixed last week.

Hmmm... I will perform a bisect tomorrow to find out when the different behavior started. I did several fixes in this area. There might be some conflict going on.
Please note that the 2.77 Grease Pencil/Annotation system has been spliced in 2.80 into a Grease Pencil, what will always be rendered and an annotation system. Not sure the real thoughts are behind the annotations in conjunction with the opengl rendering.
Ah, then the script in the .blend file might not be complete as it perform in a different context. So you have an operation that executes the opengl render in the sequencer context, and there you expect the annotations to be present.

Please refer to the manual https://docs.blender.org/manual/es/dev/render/eevee/motion_blur.html

Can you please describe the bug? It is not clear what you expected, why you expected it and what you saw.
Can you also explain what steps needs to be taken to reproduce the error?

When clicking on View -> Sequence Render Animation the area has a setting if the annotations needs to be exported

Aw my mistake I had clipping enabled