Merge pull request #7508 from aemr3/fix-pca-errors

Fix feature list match for PCA

freqtrade/freqai/data_kitchen.py

@@ -875,6 +875,7 @@ class FreqaiDataKitchen:
         """
         column_names = dataframe.columns
         features = [c for c in column_names if "%" in c]
+
         if not features:
             raise OperationalException("Could not find any features!")