Is there a reverb I am not aware of that has what I need on it? Patching everything here with two or more and I just need one maybe? So far tried magic 7, reaper stock, reverb from the reverb company . Venn audio too. Any recommendations appreciated. May just not be aware of a workaround. Thanks.

Hello fellow Logic Pro experts! This question is for you. In our studio we often arrange music on a Yamaha psr-sx900. We then import a WAV file into a Logic Pro session. When I import the wave file, it follows the built in click or metronome well in the beginning, but slowly moves so that by the end of the (usually 7-8min) song it's completely out of sync with the click. There's no noticable tempo change though, as in internally the music sounds ok without the click. Smart Tempo is set to Keep (same as the tempo from the keyboard), and both "Set new recordings to" and "set imported files to" are set to OFF in the Smart Tempo project settings. Flex and Follow is OFF for the chanel, and I make sure the first downbeat of the file aligns with a downbeat on the grid. Also, everything is quantized on the keyboard before it's arranged into a MIDI file (style) and exported to audio. When I set Smart Tempo to Adapt, I see lots of small changes on the tempo line and sometimes hear noticable changes in the file itself. When I set Smart Tempo to AUTO, sometimes it's ok, but sometimes the music slows down or speeds up very obviously. So, Keep seems the least destructive. I'd rather Logic not alter my file at all. It really slows down my workflow and is super frustrating. Any thoughts??