It's hard to say without more specifics. The Relief package provided tax free unemployment benefits up to a certain amount. For clarification, it is an exclusion from income not a credit. It is possible that the adjustment to your income may have impacted other deductions and/or credits which negated the benefit of the exclusion. The link below is to an informative article on the Unemployment Income relief. Hope this helps.
https://blog.turbotax.intuit.com/tax-news/am-i-eligible-for-the-new-unemployment-income-relief-49427...
