Thanks for joining this thread, @MarcieB. I want to ensure this will be taken care of.

Currently, the investigation for deleting a line in the Journal Entry transaction is still ongoing. Rest assured that our product engineers are bound to fix this issue as soon as possible. In the meantime, you can perform the workaround stated by @ybales.

Then, I'd recommend reaching out to our Customer Care team to link your account under the list of the affected users. This way, you'll be able to receive updates about the issue. To contact them, you can follow the steps outlined by my colleague, Mark_R.

In case you want to have a handy copy of the journal entries you've entered, you can easily run and print a journal entry report in QuickBooks Online. 

Feel free to add your comment below if you have any other QuickBooks questions. I got your back and willing to help you in any way I can. Have a great day ahead.