InfluxDB delete data after alter CQ and RP

Hi all,
i’m in trouble with influxdb. Here my problem.
I have a single instance influxDB 1.4 running since 01 April 2018 and in this DB i had a CQ and RP that aggregate data every 28 days in downsampled 1h data. After about 34 days (05 May) i deleted CQ and RP and altered the default RP to be the default one. After this i noticed that the data older then 05 May are gone.

What’s happend? Can i retrive this data?


Nobody can help???