Look at the Keep Options for the paragraphs where there are jumps (either in the paragraph style if you're using styles, or in the Paragraph panel or Control panel menu).
Also, use the Story Editor (Edit > Edit in Story Editor) to view hidden characters which might be in the text (for example, a frame break or a page break character)
Thanks for responding! I have no settings for keep options and have the invisibles turned on so I could see things like page breaks, but there aren't any. It's very strange. If I open the text frame see if it needed more space it will fill the text frame, but as soon as I bring it back to the proper margin the text jumps back to the next page. The other thing I tried was to delete a few character spaces following the last word on the page and it immediately started deleting the first characters of the first word on the next page. Very weird.
Check both the paragraph before the jump and the one after for keep options.
Thanks Steve - there are no keep options set for the entire document
It might be a little late, but for other users with the same problem this might help:
Are you in revision mode? Then it could be that you locked the pages. Simply go to Production > Unlock pages. Done!
Thanks for mentioning the issue. With a simple long document i am not able to reproduce the issue locally
Can you please share with me following information, for further investigation:
1. OS on which you are facing this issue.
2. Version of InDesign with which you are facing this issue?
3. If possible please share a sample document with which you are facing this issue with a screen recording email@example.com
It would be really great help
I am having the exact same issue. I'm using the most current Indesign CC and OS El Capitan 10.11.6. I'm working on an Indesign CC template provided my my client. The text was imported directly from the original Word doc. No Keep options anywhere. HELP!!!