I'm getting "zipper" noise when quickly moving any knob on the interface.
It also happens when automating the knobs.
This happens with ver. 2.5.1 of VintageWarmer2, VintageWarmer and MicroWarmer.
In my normal workflow, once I get the sound I'm after, I don't usually move the knobs quickly...just small tweaks to adjust.
But, I don't remember this behavior in previous versions.
Tried the plugin on the Stereo Out and on the individual Track.
I/O Buffer size in Logic 9.1.1 32 bit =1024
Process Buffer Range= Large
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Mac Pro 2x 2.66 GHz Dual-Core Intel Xeon, 9 GB RAM, OS X 10.6.8, Logic Pro 9.1.8, FF400, UAD-2 Quad