Variables not being Resolved

Summary

Unable to resolve variable values when there are delayed replies from the user

Content

Hi everyone,
I have a use case where there are multiple hyperlinks which I display after storing in variables. I stored all the references in a database and invoking a custom component to populate all the variable values at once when the user initiates the conversation. It works pretty fine when the user chats instantly. The problem arises when the user responds to the bot after quite a long time or the backend server reloads anytime after the variables are populated. 
I presume all the variables are stored in the "conversation" object and as long as the conversation is alive, the variables should persist the values. This doesn't happen in the above case. I see the $variable.value in the bot message instead of the actual value.