Sum of day window rolling

Question

I have the following table of data:

transaction_id	user_id	amount	transaction_date
354	423	240.13	01/01/2022 12:00:00
2425	423	167.24	01/03/2022 12:00:00
1352	423	234.14	01/03/2022 12:00:00
2145	423	123.45	01/04/2022 12:00:00
1544	423	82.90	01/06/2022 12:00:00
1223	525	124.20	01/01/2022 12:00:00
1732	525	324.00	01/02/2022 12:00:00
1413	525	100.50	01/03/2022 12:00:00
1141	525	123.00	01/03/2022 12:00:00
1341	525	198.35	01/04/2022 12:00:00
2362	826	146.24	01/02/2022 12:00:00
1234	826	242.00	01/04/2022 12:00:00

I wrote the following query in order to compute the sum of the amount for each 3 days:

SELECT user_id, transaction_date,
      SUM(amount) OVER(PARTITION BY user_id ORDER BY transaction_date RANGE BETWEEN interval '2 days' PRECEDING AND CURRENT ROW ) AS rolling_earnings_3d 
FROM user_transactions;

I got the following output:

user_id	transaction_date	rolling_earnings_3d
423	01/01/2022 12:00:00	240.13
423	01/03/2022 12:00:00	641.51
423	01/03/2022 12:00:00	641.51
423	01/04/2022 12:00:00	524.83
423	01/06/2022 12:00:00	206.35
525	01/01/2022 12:00:00	124.20
525	01/02/2022 12:00:00	448.20
525	01/03/2022 12:00:00	671.70
525	01/03/2022 12:00:00	671.70
525	01/04/2022 12:00:00	745.85
826	01/02/2022 12:00:00	146.24

The output must be:

user_id	transaction_date	rolling_earnings_3d
423	01/01/2022 12:00:00	240.13
423	01/03/2022 12:00:00	641.51
423	01/04/2022 12:00:00	524.83
423	01/06/2022 12:00:00	206.35
525	01/01/2022 12:00:00	124.20
525	01/02/2022 12:00:00	448.20
525	01/03/2022 12:00:00	671.70
525	01/04/2022 12:00:00	745.85
826	01/02/2022 12:00:00	146.24
826	01/04/2022 12:00:00	530.24
826	01/07/2022 12:00:00	100.00

It seems that the rows with the same dates are computed twice.