this is only a simple vertical bar graph that uses a field and timestamp.
however the field selection forces you to choose your field with the first letter in capital. but this gives the wrong result, and if you inspect it will also show this
UI forces you to use uppercased first letter
this results in this query, where result of sums are 0
the correct query should be like this. but UI does not allow you to make the uppercase to lowercase
do you have a workaround for this?