Issue with Dorico iPad 5.18 and Iconica Sketch AU

I purchased Iconica Sketch AU because the built-in Version has too much reverb for my running project with very fast spiccatos and actually everything works well now. Except when I export the music as M4A-audio. Then all sounds of Iconica AU are reset. The M4A as well as the Dorico project is messed up afterwards. The built-in Iconica and SWAM AU instruments are not affected by this problem.

That’s very strange, @Troy_I. When you export audio, Dorico doesn’t change anything about the playback setup of the project.

But nevertheless it happens again and again.