Hm, yes, thanks for the recommendation, but I have already saved some projects in VST3 mode and that is a problem. It's now 2025 and I can remember such nonsense in 2008... I'll ask the Spire people if they have an answer. I've already checked most of the things: Plugin Manager (*pgl file), VST scan, reinstallation of the plugin, VST3 folder checked - 16 per month - Spire Synth is a common, very popular plugin... Also, no prob in FL Studio (which is my second DAW)