FL Studio loop sync with Cubase 11.1

Hi guys, long time Cubase user here. This is my first post. Just got 11 Pro and am absolutely loving it. Still much prefer to use FL as a VST within Cubase for drum programming though.

So the problem I’m having that I wasn’t having before on Cubase 5, same interface (Akai EIE Pro) is that now, when looping with an FL channel from Cubase, every few loops it seems to drop a few milliseconds and restart the loop noticeably late. Occasionally it’s maybe even as much as a semiquaver late.

This happens even with a single channel with no effects on.

Any ideas what this could be? Any settings I can change? Audio buffer is set to highest priority and lowest setting on both apps.