I just used a Troop Boosting Potion from the Cauldron before going into the Spire. The Potion boost is now shown in the tooltip, but none of the other boosts (AW's, fed fire chicken, temp boost bldgs) showed up. I fought the first floor of the Spire (mix of manual and auto-fighting) and my losses seem similar to last week's Spire. I'm using the same temp boost bldgs for both weeks of Spire.
It does appear to be a visual issue, but I didn't track the actual attack and damage numbers, nor did I try to figure out if the attack and health numbers reflected any of the other boosts.
I'd also like to see this fixed asap. I look at those individual troop boosts to make decisions about upgrading relevant AW's. I also use the expired bldgs similar to the way @Yogi Dave
described to boost supplies for troop production/brown bear feedings. I don't have nearly the number he does (usually between 8-12 5d bldgs) but it is annoying to go hunt down the bldgs after an unexpectedly difficult fight to figure out if something expired.