It is probably a good idea to avoid using 22KHz tone switches in fta antenna systems for more than one reason. Install a diseqc switch and your problems should disappear.

Antenna systems with motors should have switches or anything else installed after the motor or motor controller. Wire as: Receiver--->Motor (or controller)---> switches---> lnbs

Understand the limits of 22KHz tone switches if you need to use them:
22KHz tone switches power both lnbs all the time.
22KHz tone switches cannot be used with more than one universal type lnb.
22KHz tone switches can cause scanning problems in some receiver models.

It is better to use a diseqc switch installed after the motor or motor controller. Makes life much easier.