Issue With Custom Variable 'Their Value Proposition' in Instantly

I made GPT create one line on the value prop for the client's ICP based on the company website input. Then as the last step I have created Instantly enrichment with custom variable 'Their Value Proposition' and mapped it to the appropriate result field. When I add 'Their Value Proposition' as custom variable in my email template in Instantly and click preview nothing's there. Also it seems like the value prop is not transferred to instantly at all, according to this screenshot. 'ICP' variable is created and transferred successfully (also available in the screenshot). What went wrong here and how to fix it? Thanks!