Softknob to delay time not working.

  • A strage thing happened yesterday while designing a patch, I don't know if I found a bug or if this is a limitation by design.
    Simple task: I assigned delay feedback to softknob 1 and delay time to softknob 2. If I use the classic Virus Delay FX this works. But doesn't with tape delay!
    Is this normal behaviour or a bug?
    Anyway I bypassed the limitation assigning controllers 12 and 13 to softknobs, and than, in 2 mod-matrix slots, I used controllers as source and delay time & feedback as destination.

    -Windows 10 Pro 64bit DAW (Asus ROG Maximus XI Hero + i9-9900)

    -Steinberg Cubase 10 + Steinberg CC121 Controller
    -Steinberg MR816 CSX + Behringer ADA8200
    -iConnectivity MIO10
    -Virus TI2 P0lar
    -Waldorf Pulse (1)
    -Waldorf Blofeld

    -Yamaha AN1x
    -Yamaha Reface DX
    -Clavia Nord Modular G1 Expanded

    -Moog Minitaur
    -Maschine MK3

    -Elektron Octatrack MKII

    -Adam A7X
    https://soundcloud.com/daksha