That particular model of Bosch, is not the DIY (green) machine I was thinking of, it was part of their professional range. I would be very surprised if it is dead in the water - must be something stupid. Bosch is open - contact the Cape Town service centre, and get them to check it out. Even if there is a small charge, it is worth it.
Regarding the Triton, it sounds like it is a procedure problem, involving the interlock, the switch, the plunge lock. I would be happy to discuss it with you on videoconference, but I think you would be better served by talking to someone who knows the product. i do not know where you bought the tools, but there is a great outfit in Cape Town called BPM Toolcraft, in victoria Ave, Plumstead. they have re-opened, subject to strict social distancing rules. Specifically, there is a very knowledgeable guy called Brian Thomas. I recommend you contact him, take it in and ask him to look at it. he will know if it is a machine fault or something procedural. they are re-sellers, and can send it for fixing if required.
A word of warning: if you have never been there before, have someone else take charge of your credit card before you step into the shop.
The other useful crowd is Hardware Centre, but I cannot vouch for the knowledge of the Cape Toewn guys - i do not know them.