I don't know what you guys are talking about. Just spent 15 minutes trying to generate a pop or rumble or shake and nothing but rock solid. Absolutely no difference in Reaper between playing it in the VST transport versus playing it in Reaper transport.

I understand if we have someone who does not know this software, but Pipeline when did this problem you are reporting start? I can only speak to Reaper so are you saying this is a S1 issue only?

BIAB – 2025, Reaper (current), i7-12700F Processor, 32GB DDR4-3200MHz RAM, 1TB WD Black NVMe SSD, 2TB WDC Blue SSD, 1TB WD Blue, 2 TB SK NVMe, 6 TB External, Motu Audio Express 6x6