Batch invoice edit greyed out!

Frustrated! the batch edit button within sales (all sales) is greyed out again!

I've been onto support and tried clearing cache, different browser, incognito etc but the issue is still there. My own IT company say all the internet browsers are up to date and say it must be a QBO issue.

Please help, this feature is the main reason we went with QBO to edit multiply invoices each month.

Thanks,

Angela