Could you show your pages pannel. If you have unchecked "Allow Pages to shuffle" Pages may still be single pages even if you are allowing spreads. In Indesign a spread can be one, two, three, four, or even more pages. For the pages to be converted to "normal" spreads first change the document to "Facing Pages" then make sure that "Allow Document Pages to Shuffle" is checked, you may be asked if you want to preserve spreads. This is what facing pages looks like if InDesign does not have permission to shuffle pages.
Check menu and the pages should look like this:
If you have [] around a page that spread is exempt from the rule. The line symbolising the spine is what tells you that you have "Facing Pages".
Note that you can create a spread of one or more pages even if "Facing Pages" is unchecked. Single pages or spreads are not a "view mode" as in Word or Acrobat but are changing the pages to be left or right pages.
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