Hello sindhu,
Welcome to our forum and thanks for contacting us with your question!
I've been trying to debug this problem and unfortunately, it seems to be a bug that I've already reported on our GitHub. Feel free to check it out as the possible workaround/fix should be provided here as fast as it will be possible:
https://github.com/highcharts/highcharts/issues/18291.
Thanks for reporting the problem, we are sorry for the inconvenience,
Kind Regards!