Very little details. However, VTI does the daisy chaining of tuners. PLI, VIX, ATV, OBH and others do not daisy chain. ( ATV is a recent change). On these images, the linkage is to the tuner(connection) with the signal wire. VTI is to the previous tuner letter.
If you want to resolve your issue, please respond back with:
Tuner A: Describe the dish/LNBs physically attached to it.
Tuner B: Describe the dish/LNBs physically attached to it.
Post screenshots of tuner configuration for all 8 tuners. That's 8 screenshots.
To grab screenshots, see this thread. Go to the web browser section.
https://www.linuxsat-support.com/thread/107704-how-to-take-a-screenshot-on-any-enigma2-receiver/?pageNo=1
Please state the names and on what satellite the channels you are trying to record are on.