Hello @MariaF583 ,
I'd advise reaching out to Outlook's support, to see what they suggest for Outlook settings that might be causing issues with your formatting. The biggest issue is that Outlook uses Word to read the coding for emails, whereas nearly every single other email client uses systems meant for reading emails. Due to this, many of the issues with properly reading email coding and displaying them plague other ESPs in similar ways, and have their own sporadic issues.
Our best recommendation would be to either continue tweaking the affected text and tables as you see fit till it works for your particular Outlook client, or to include a View as Webpage link.
I'd also recommend taking a look at this Community blog post, which covers some of the elements of designing emails for a variety of email programs, what pitfalls to avoid and can't be avoided, and what workarounds are available.
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