Arturia plugins and Pro EQ

[niles]

Since I'm new to this forum (not new to Studio One), lets start by saying hello and how nice it is there's an actual Studio One forum again.

I need a little help with a specific issue when using Arturia plugins (I use their VST3 versions) in combination with Studio One's Pro EQ.
When I use Pro EQ behind an Arturia Plugin, the CPU strain of Pro EQ is abnormal.
I'm not sure if it is related to a setting, and I’d appreciate it if someone could help test the following steps and share their result (what you are seeing):

1. Insert an Arturia plugin before Pro EQ in the signal chain. I tested with Analog Lab 4, Analog Lab 5, Plate-140, and Mini Filter.
2. In Pro EQ, boost the LMF, MF, and HMF bands by around +5 dB.
3. Open Studio One’s performance monitor.
4. Play a short sound using the Arturia synth or any instrument placed before the Pro EQ.
5. After the sound stops, observe the CPU meter for Pro EQ while the signal is silent.

What I’m seeing: After a few seconds of silence, the CPU usage for Pro EQ begins to rise steadily. It only drops back down once I play another sound or when I disable the Arturia plugin.

With other EQ's there's no issue, and with other plugins pre Pro EQ there's no issue either.

Thanks in advance for doing the test.