I believe as long as the assets meet the definition, and are used in production of QBI income they can be used.

Qualified property is defined as tangible depreciable property. To be considered qualified property, the fixed asset must fall into a depreciable period as defined by the regulations. For purposes of UBIA, the depreciable period starts on the date that the property is placed into service, and ends the later of, the last day of the depreciable period or for 10 years. The property must be used in the production of QBI in order to qualify for the UBIA computation.