Why do I get different number output with Group by clause

Question

I have a source system where I get for example a count of ID of 2318.

I made two queries, 1 is showing only count of the IDs and a second one has a group by clause. But in the end the outcome is different.

1. Query

    SELECT 
    COUNT(DISTINCT ID)
    FROM my_table fact
    JOIN d_time time ON ( time.time_5_min_utc = (fact.host_tlt_utc -(fact.host_tlt_utc % (300*1000))))
    WHERE fact.host_tlt_utc >= ${fromTimestamp}
      AND fact.host_tlt_utc < ${fromTimestamp}  + 86400000
      AND time.time_5_min_utc >= ${fromTimestamp} 
      AND time.time_5_min_utc < ${fromTimestamp}  + 86400000;

Output of this query is 2318

COUNT(DISTINCT ID)
2318

2. Query

SELECT 
status,
COUNT(DISTINCT ID)
FROM my_table fact
JOIN d_time time ON ( time.time_5_min_utc = (fact.host_tlt_utc -(fact.host_tlt_utc % (300*1000))))
WHERE fact.host_tlt_utc >= ${fromTimestamp}
  AND fact.host_tlt_utc < ${fromTimestamp}  + 86400000
  AND time.time_5_min_utc >= ${fromTimestamp} 
  AND time.time_5_min_utc < ${fromTimestamp}  + 86400000
  group by status;

Output if I sum up all the lines is much higher.

status	COUNT(DISTINCT ID)
Open	1383
In_Progress	980
Ready	20

Is there any explanation why such different output is shown? I think in the end it should be the same.

Thank you.