Thank you so much for the reply, i was also thinking about possibly a dry solder joint but the pedal works fine when circuit is routed via R3, using the previous cap. So it’s a bit puzzling, and wondering if i had changed the orientation would it have made a difference, as per the youtube video. I could try and reinstall it, but don’t think i will. 🙂
Also thanks for the youtube video, never realised this about film caps and it’s pretty cool to know, i’m building a few high gain pedals next, and I’ll definitely be marking the polarity of my film caps before i put them in.
Thanks a lot for the advice and guidance.