[Python] I don't understand why my hashmap is not getting sorted

I'm currently doing the daily problem on leetcode and I can't understand why my hashmaps are not getting sorted, for "successes" I got as sorted hashmaps: {u'u': 1, u'e': 2} and {u's': 4, u'c': 2}. My code is the following:

class Solution(object):
def maxFreqSum(self, s):
"""
:type s: str
:rtype: int
"""
vowel_count = 0
consonant_count = 0
vowels = set("AEIOUaeiou")
vowel_dict = {}
consonant_dict = {}

for i in s:
if i in vowels:
vowel_dict = vowel_dict.get(i, 0) + 1
else:
consonant_dict = consonant_dict.get(i, 0) + 1

vowel_dict = {k: v for k, v in sorted(vowel_dict.items(), key=lambda item: item[1], reverse=True)}
consonant_dict = {k: v for k, v in sorted(consonant_dict.items(), key=lambda item: item[1], reverse=True)}

print(vowel_dict)
print(consonant_dict)

if vowel_dict:
vowel_count = next(iter(vowel_dict.values()))
if consonant_dict:
consonant_count = next(iter(consonant_dict.values()))
return vowel_count + consonant_count


I don't understand why one hashmap is sorted and the other one no.

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