That could be why. Lower ferment temps will cause the process to be slightly slower. Is this a new yeast type for you? Some stick on top throughout, "top-croppers"
No, it's my go-to, us-05. I guess it was the temps. I usually keep it near 70 for the whole time in primary so it's probably the slower fermentation. It's up at 70 now. Going to let it finish up there. I'm considering cold-crashing but I already have my ingredients for my next batch so maybe not. Clarity is overrated.
I don't have the funds to be too quick anyway, but I've used US-05 the last few times and leave it for 14 days before I do anything. I try to keep it in the mid 60s. May have just needed another day or two before it fell out.