Since upgrading from Magento 2.3.3 to 2.3.5 the abandoned cart report is no longer showing any records. The site cronjobs and indexing are working properly.
I noted that the report is now part of the dotdigital module and if I disable the dotdigital module, the abandoned cart report link is removed from the menu.
Is a dotdigital account now required for this report to function?
I've been unable to find a solution to this issue.
I ended up working around it by installing the Amasty Advanced Reports module, which has it's own abandoned cart report.