Problem html to pdf when a flex container is in a div having a margin-left

If have the following html markup

this result for groupdocs, and only for groupdocs among 5 tested solutions to the following render:
image.png (29,5 Ko)

when expected result is:
image.png (13,4 Ko)

it seems that the margin is not considered when the page is rendered.

How can I fix this ?

@tschmit

Could you please share the problematic/source HTML file? We need that in order to investigate the issue at our end.

here is the html file.
forMerge.json.ano.html.zip (20,2 Ko)

@tschmit
Thanks for sharing the source file. This issue is reproduced at our end. Therefore, we have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.

Issue ID(s): CONVERSIONNET-6535

You can obtain Paid Support Services if you need support on a priority basis, along with the direct access to our Paid Support management team.