"sp2tswitch" not working properly with "actimes" transient option

Hi all! I am experiencing a problem when trying to use the "sp2tswitch" in a transient simulation where I use the "actimes" option to perform multiple small-signal analyses at different time instants. In a nutshell, it seems that the "sp2tswitch" component remains "stuck" in the AC position after the first "actimes" call, and does not return to its "transient" position for the rest of the transient simulation.

I have prepared an example test case (please see attachments below). I have a first sinusoidal source (f=1MHz, A=1V) that should drive a cap (C=1pF/(2pi)) through a 100MOhm resistor for the transient simulation, and a second source (Vac=1V) that should drive the same cap through a 1MOhm resistor but ONLY FOR THE AC simulation. If I run the AC simulation without embedding it within the transient simulation, I obtain the expected output voltage ("vOUT") for both simulations, transient and AC. However, if I embed the AC simulation within the transient simulation at actimes=4us, the switch remains in the AC position for the remaining of the transient simulation, providing erroneous transient results from this instant onwards! (the AC simulation results are however correct).

In my actual application, I use the "sp2tswitch" repeatedly in order to selectively break feedback loops during small-signal analyses (AC, noise, stb) while retaining them closed for proper transient operation. In the past I never had issues with this approach, but I didn't have the need of running the small-signal analyses more than once. Now I need to do this, so I would really appreciate if someone could please help me to overcome this problem.

Thanks in advance for any help!

 Cheers,

Jorge.