Yes, there are a few. I'm seeing more and more properties enforcing preferences for room upgrades/lounge access etc. Here is a snapshot, but encourage you to go the the website and review:
** Executive Lounge Access Policy


If you select a space-available room upgrade as your on-property Elite benefit, the following policy will apply at all HiltonŽ, ConradŽ Hotels & Resorts and DoubletreeŽ hotels:

If you are an HHonors Gold Member, you'll be given access to the Executive Floor lounge when you receive a room upgrade to the Executive Floor. If an Executive Floor room upgrade is unavailable, you'll still receive daily complimentary Continental breakfast in lieu of lounge access.

If you are an HHonors Diamond Member, you'll enjoy access to the Executive Floor lounge, even if you don't receive a room upgrade to the Executive Floor, including daily complimentary Continental breakfast.

At hotels without Executive Floor lounges, HHonors Gold and Diamond Members will receive complimentary Continental breakfast for themselves and up to one additional registered hotel guest each day. If breakfast is included in the room rate, you'll receive an alternate welcome amenity that varies by hotel.