Power BI desktop Timeline Slicer was working fine till May 28th, 2019. Yesterday suddenly I am seeing below issue while I click on Month on Timelince slicer and seeing this issue. Please find the below error and attahced image.
My issues with slicers throwing this error is now solved, after updating PBI Desktop to:
Version: 2.70.5494.562 64-bit (June 2019)
This is the version currently available on the Microsoft Store other download sources might not have this one yet so make sure to use the appropriate channel.