I thought there was already an opened Issue about this, but I searched and I found nothing.
The bug is that just like in older versions of Mcreator recipe output reset to 1 when editing or exporting/importing workspace, block tick rate resets to 10.
This is not very important, but still very annoying. I hope you will fix it in 1.8.1.
(This bug was here from a long time, even before the recipe output bug was fixed if I remember well, so this is not a 1.8.0 exclusive bug)
Issue comments
The patch for MCreator 1.8.0 was released. Redownload MCreator 1.8.0 and reinstall it to fix this bug. Check the bottom of the release article for more info: https://mcreator.net/news/44102/mcreator-180-update
Thank you for the report. This bug might be fixed in 1.8.0 patch today.