Hi Paulo Conceição 

Are you able to share an example file with me?

Lyds

Hello Lydia,

Thank you for your reply.

Unfortunately, as I'm sure you'll understand, I cannot share these documents due to confidentiality issues.

All I can share is that the problematic Powerpoint presentations present a large number of slides and a considerable volume of text, but no notes.

Can you describe the information you would need to evaluate this problem?

Best regards,

 Paulo Conceição 

I find it odd that you feel the export for bilingual review, is part of the problem.

However, the issue is specific to powerpoint (presumably from same source?) and therefore I wonder if it's something in the powerpoint.
For sure the error is implying the files are corrupting so we need to get to the bottom if it. 

For that having access will help me understand its structure, elements and I would be breaking the PowerPoint deck down slide by slide, if need be, till I find the root cause. 
It could be an any of the supported PowerPoint features that is not parsing correctly for bilingual review so it would require file access and patience to establish more details.

Given you say the files are large, try reducing embedding to 0 before creating your project under File - Options - File Types as shown below

Secondly, copy all the content and place in new PowerPoint that is blank. I want to test/ensure you dont have any overlays & marketing decks that could be introducing additional markups that is normally being manged. My attempt is to have as simple yet realistic version of your PowerPoint to help you try troubleshoot. 

Looking forward to your reply

Lyds

Hello, Lydia,

Thank you for your detailed answer.

I feel that the export for bilingual review is part of the problem because if I generate a target file before that step I get to open the Powerpoint file without any errors.

I'm not saying that this is the cause, but it's the only action triggering the error after the Finalize step.

As soon as possible I'll try to perform as instructed in one of the files and send it to you as a PM for testing.

Best regards,

Hello, Lydia,

Thank you for your detailed answer.

I feel that the export for bilingual review is part of the problem because if I generate a target file before that step I get to open the Powerpoint file without any errors.

I'm not saying that this is the cause, but it's the only action triggering the error after the Finalize step.

As soon as possible I'll try to perform as instructed in one of the files and send it to you as a PM for testing.

Best regards,