Hi Anatolyj_B-
I understad that you found this feedback to be interesting, but it really was a bug. We had other complaints about this high frequency feedback and felt removing it was the right move. The tail energy will dissipate some over time, depending on settings of the EQ section. We will consider ways to mitigate this, but I can't say it will be updated.
If you email support@eventide.com referencing this post, we will provide you with an installer for the last version before this fix.
-Tom
