No line breaks in data files?

I have an issue with the format of the data files I get in Jatos (3.8.1 local version).

On earlier versions (eg 3.7.1), the csv files I got from Jatos looked like this:

"subject", "date", "block", "trial", [....]

"1", "01.02.23", "1", "1", [...]

"1", "01.02.23", "1", "2", [...]

[...]

"1", "01.02.23", "10", "100", [...]

"subject", "date", "block", "trial", [....]

"2", "04.02.23", "1", "1", [...]

"2", "04.02.23", "1", "2", [...]

[...]

"2", "04.02.23", "10", "100", [...]

Now the output looks like this:

"subject", "date", "block", "trial", [....]"1", "01.02.23", "1", "1", [...]"1", "01.02.23", "1", "2", [...][...]"1", "01.02.23", "10", "100", [...]

"subject", "date", "block", "trial", [....]"2", "04.02.23", "1", "1", [...]"2", "04.02.23", "1", "2", [...][...]"2", "04.02.23", "10", "100", [...]

So all the data of one participant is in one line. Unfortunately I cannot read the data like this, since it becomes unclear when a new line begins. I even cannot replace all "" (column seperators are "," but when a new line starts there are no seperator) with "\n", since empty cells are also "".

This is a bit frustrating, since I have no idea how to resolve this issue. Does someone have an idea?