Hi @asultan90,
Thank you for reaching out to the Community!
You are using this integration, is that correct please?
I found this solution from @nickanscombe on this post “Sync contacts and their activity and/or notes to Monday?” that might help you!
Also, @Baduist are you still using Monday.com? If yes, have you been able to sync existing contacts to Monday.com to help @asultan90, please?
Also, if anybody else has anything to add and/or share, please feel free to join in the conversation 
If you are still encountering this behavior after checking the post I shared, since this is a third-party application which has not been developed by HubSpot, I’d recommend getting in touch with Monday.com’s support since they will be the best point of contact for this.
Here are the contact details of Monday.com’s support:
Emaill: support@monday.com
Phone number: +1 (201) 778-4567
Website: https://monday.com/
Thanks and have a great day!
Best,
Bérangère