We just had a new liner installed on our inground pool. The liner looks great, but I just noticed that we no longer have a 'track' on the coping where our winter cover gets slotted in. When looking at before photos, the old liner is lower, so it appears there were two tracks (one for the liner, one above for the lock-in winter cover) and they installed the new liner in the top track. I'm assuming this is a problem and now we can't put our winter cover in the track??? What next? Am I missing something, do they need to fix it (or can this be fixed?)