Moved midyear - home office deduction
So, move in March to a new home. Both new and old home have a home office. What I noted was that as soon as I added the second home office (and allocated per the instructions here - https://ttlc.intuit.com/turbotax-support/en-us/help-article/expense-accounting/allocate-expenses-two-home-offices/L8FenpjT0_US_en_US?uid=lgcobbd1), indicating that the home offices were used 25%/75% respectively, the tax liability increased significantly (by about $3000).
On the old home, there was a significant carryover of prior year operating expenses. Could that be the reason for this huge swing? Mostly wanting to make sure I'm not inadvertently shorting myself a deduction I should be able to take, but can't convince TurboTax to set it up properly. Any help would be greatly appreciated!