Similar suggestion as implied by @agreif . . . try the 8min or 20min test when you are rested again.
If you follow several of the different Forum threads you will see a growing # of folks for which the Ramp Test doesn’t work for them. I am certainly one of them and I have a long history of competitive sports (i.e. I can go deep and hang there). Also, if you have a phenotype of that of a TTer vs. a sprinter (see “Training and Racing with a Power Meter” for a deeper understanding if you aren’t familiar with this), then you may perform better in the 8min and/or 20min test. 8min is probably better if you are new to structured training. 20min once you have a fair bit of experience at riding at your threshold.