Formatting issue on Description field

[alih]

I have an integration with an inventory management software that pushes product data (new and updated) to my Shopify store. My issue is that when the data for the Description field comes across, it loses all the formatting i.e. tabs, new line etc. I've checked on the inventory management software side and they are not stripping the formatting, so it seems that Shopify is doing this. Has anyone else experienced this? Any ideas on how to overcome it?

Thanks.

[PaulNewton]

Are they pushing to body_html in REST, or descriptionHtml for GraphQL (graphq; bodyHTML is depreciated)

Is the html valid or have strange characters or encoding, etc 

(what happens if you try to CSV upload one of the descriptions or put in the rich text editors html-mode?)