Husqvarna rider 155 won't start. There was a problem with the engine stopping when the forward

Question

There was a problem with the engine stopping when the forward pedal (or reverse) was pushed. Checked the safety switch that controls that -switch checked OK. plugged it back in and it would start and run OK, but engine would stop when the blade was lowered - checked the switch that controls that - checked OK. Plugged it back in and engine started, mower drive worked and mower deck worked. Great! but brought the mower back in to install a cover and currently it will not start. 15 amp fuse looks good. Checked the other switch (seat) and it checks OK too. What now?