Hi Hashim,
Thanks for your patience.
We are glad to announce that we have added the fix for the issue –“ Select all check box is not working with "All" page size” in our patch release (v19.4.55). So please update your packages to latest version to include the fix.
We thank you for your support and appreciate your patience in waiting for this release. Please contact us if you would require any further assistance.
Regards,
Pavithra S