The writing of Trim automation depends on how it is set to be coalesced. See Coalescing Trim Automation. If automation is not set to coalesce after every automation pass, Trim automation moves are written to a separate Trim playlist.1 In the Automation window, make sure the automation type (Volume or Send level) is write-enabled.2 Click the Automation Mode selector of the track where you want to write automation and choose the automation mode (Touch, Latch, Touch/Latch, or Write).