He made his seasonal reappearance in the Old Roan Chase on Sunday, but trailed home a well-beaten ninth to leave Williams scratching his head.
He told Racing UK: "He's come out of the race fine and we really don't know what went wrong at Aintree. He never picked up the bridle and never looked interested.
"We'll just wait for another day. You can't put it down to the fact it was two and a half miles. He didn't travel at any stage.
"It's unusual. We can't find anything physically wrong, but he will now go to Haydock. It's a puzzle. Softer ground, a slower pace and a smaller field would all be positives."