Test version 0.5.16 problems

I tested the Ssd1306 lcd in version 0.5.16
but the screen remains black and the oscilloscope does not detect
signals neither clok nor data (in 0.4.15 it works).
I also tried L298P, the L298P_test with leds and also
with the motors it works but by varying the voltage Vs to 12V the output
it always stays at around 4.3V while it should be around 12V
the scheme is the same as cuello I found on the net.
In addition, in version 05.16, the simulation does every now and then
stop with the following error: "could not solve matrix".
Greetings
Giordano

I tested the Ssd1306 lcd in version 0.5.16
but the screen remains black and the oscilloscope does not detect
signals neither clok nor data (in 0.4.15 it works).

Yes, there is a problem here.
Thinking how to solve it.

I also tried L298P, the L298P_test with leds and also
with the motors it works but by varying the voltage Vs to 12V the output
it always stays at around 4.3V while it should be around 12V
the scheme is the same as cuello I found on the net.
In addition, in version 05.16, the simulation does every now and then
stop with the following error: "could not solve matrix".

Try the file attached: L298P.simu
at trunk/resources/data/ICs/L298P/L298P.simu

It would be nice if Sergey can review this subcircuit and see if it's ok.

This new sub-circuit works with LEDs and also with DC motors.
Thank you
Greetings