[solved] In project with long (1hr+) 32bit float files Nuendo takes long time to start

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I am currently editing a podcast in Nuendo that was recorded with 32bit float audio and for some reason playback and stop takes ~5 seconds before it reacts.
What could be causing this?
(I tried both Nuendo 10 and 11).

Thanks!

[edit] turns out there was a plugin hidden somewhere on a group channel that added a lot of compensation time. (4 seconds worth :roll_eyes:

Anton