2-1 nap transition, what to do when nap was only 1 hour

Hey everyone, we’re in the midst of the 2-1 transition. Baby will be 13 months next week. Done a handful of one nap days that were separated by babies first cold. So, today , on day 2 of our second trial, I put her down after 5 hrs 5 minutes awake, we’re doing a 5/6 and I usually do 5 minutes before the 5 hours, but she is also not adjusted to the time change so she woke at 535. She slept for 1 hr 5 minutes. She was trying to go back to sleep, usually I swoop in and contact nap the rest of the time, but I gave her ten minutes to try to do it herself and of course by the time I went in to try she wouldn’t go back to sleep. She woke up at noon. Basically if she would even take another nap it wouldn’t be until 4 pm which is too late.. what do I do? A 15 minute nap at 4 if she’ll take it ? Or just power through and do bedtime at 6? Any advice would be helpful on this or the transition in general. Old wake windows were 3.5/4/4 and were not really working anymore.