Yes, new bottle usually helps.
I do keep the old slower-drying stuff for mixing with talcum powder, as it does not dry so fast it can be left to cure a little longer, and will also self level a bit more, but that aside.
Was there any old CA on the parts? CA will stick to a lot of things, but in my experience not much to it's own. If there was CA on the parts that could also be the cause?
Jeroen