With certain data, line charts fail to be correctly drawn/updated in powerbi web client.
Table and bar chart views are fine with the same data, also the same line charts work in powerbi desktop client.
Also, the data itself seems to be correct in the chart, since hover labels are correct. See screenshot below.
Below is example data that gives me 100% repro (make a line chart, choose val as value, add date as axis, add slice and date to that, try to filter by date):
I'm not able to reproduce the issue on my side.
1. Please duplicate the line chart, change X-axis type as Categorical. Then republish the report to see if the line chart display fine.
2. Please try to run the latest Power BI desktop version 2.49.4831.521 to create the report.
3. You can download our test LineChart.pbix file, then publish to your Power BI service to see if the issue related to your service cluster.
The issue should be related to your Power BI service itself, please create a support ticket: