Umbrella Academy season 2 plot hole: How did Allison get her voice back?

At the end of season one, she was still unable to speak and used a notepad and pen to write down her thoughts.

However, in the trailer for the new season, she is once again able to speak and fans are wondering how this came to be.

At the start of the second season, the Hargreeves siblings end up in Dallas during different years throughout the 1960s.

Due to an error made by Five (Aidan Gallagher), the siblings are separated from one another and they are left to make new lives for themselves.

When Allison is first seen, sporting a classic 60s hairstyle and dress, she has her voice back.

source: express.co.uk