ECM - Scheduled email is not working

Recently, I was presented an issue where email cannot be scheduled from ECM. Though test email or immediate dispatch of emails work just fine. The following set of actions will replicate the issue on the particular setup we have

1. User creates a newsletter (any template) under target audience draft folder.
2. User schedules dispatch the newsletter.
3. System moves newsletter to scheduled folder.
4. System creates a new task item.
5. System triggers task when schedule arrives (sometimes with few minutes delay*).
6. System moves newsletter to dispatch folder.
7. System set the newsletter status to pause.

With the help from support team in Sitecore, the issue was resolved. Apparently the strange behavior is caused by setting EventQueue to true.

However the setup is actually a Scaled Setup where EventQueue is essential in clearing cache and also to rebuild indexes on the delivery server. For now, further test will be conducted and i will update once more information is available.

Page Editor - Unable to edit fields

Recently I encountered a puzzling situation where when I logged in to Sitecore Page Editor, I can do all the things page editor allow me to do except editing fields. It turns out that there is a checkbox that prevent editing of fields. This checkbox can be founder view ribbon and its called "Editing".