Turbo Tax incorrectly Calculated a depreciation deduction of zero

Using TT Home and Business I chose the category "Other Asset" and entered a 20-yr asset with an acquired date of 06/01/2006 using the 150DB depreciation method with a basis of $3,000. The accumulated depreciation at the end of TY2021 was $2,321. There was no section 179 expense or other reduction in basis. With this data, TT calculated a TY 2022 depreciation deduction of Zero!  Something is not right with this; there is still $679 in unused accumulated depreciation remaining. anybody explain what the problem is? I should be getting a deduction of about $55 for TY 2022.

 

This is what the help tells me:

"No Depreciation Calculated

There are several reasons why TurboTax may not have calculated depreciation for your asset. They include:

- this calculation may be only applicable for your state (if that is the case, the Federal depreciation would be zero)

- the asset may already be fully depreciated

- you may have incorrectly entered the date you acquired the asset

- you may not have entered a cost for the asset"

 

NONE of these things are true and yet TT still gives $0 for the deduction.