Newbie cannot delete bucket via GUI and C# api

Hi All,

I have been playing around with InfluxDB on my NAS just to get to know how it works. I am using a test file containing 2million rows (around 150 mb csv file) and I am mainly using the c# api.
Every time I run a test,and then delete the bucket, and then I create a new bucket with the same name, and start uploading.
It usually works for 5-7 times in a row, but then suddenly I get no response. Then I try to delete the bucket in GUI, but it is not happening. When I go into the data explorer, I can see the bucket, but it is just keep loading tag values. Since it is a small database, the gui has always been super responsive, but now it is just stuck. I also cannot retrieve data via the c# api.
It only works if I shut down the docker container and start it again. The cpu consumption of the container is basically 0%, so it doesn’t seem that anything is running in the background.
I have installed it in a TrueNAS Scale system, and I have only problem with the bucket deletion.

Also if I try to change the retention policy in the GUI from forewer to 1 hour, this is what I get:
“Failed to update bucket: “shard-group duration must also be updated to be smaller than new retention duration””

Does anyone have any idea how to avoid it?
Thanks.