Probably product left in the bristles, decant a small amount of fresh monomer into a clean dappen dish and clean your brush. It's seems like a faff but trust me it's worth the 60 seconds of your time and a few pence of monomer. (Dispose of the monomer once you're done, not back in the bottle).I will give them a look thankyou!! I’ve already ruined one brush and I’ve only practised twice the brush wasn’t being my friend aha so need to invest in something worth it!
Thankyou for replying to me!