3 plate method, loft light only turns on if bedroom light is switched off?

[Lee Gold]

Can you perhaps draw exactly what you have at the bedroom rose, it might help solve your problem. For example, it is not uncommon at the last light on the circuit for N and SL to be mixed up, but since you have a L+N feed IN and feed OUT per your drawing, I've discounted that.

Yeah no worries mate I’m not they’re untill tomorrow so I will check, my wiring to the loft switch and batton light is correct though?
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going by the drawing, i blame the spider that drew it, then took up residence in the part labelled "loft light". and he's 6 legs short of a full 8.

What’s this about mate can I sense abit if ----taking? Correct me if I’m wrong but it’s seems that way tbf