I am using InDesign 17.2 x64.

Occasionally when pressing the little red box of a text frame to continue the story and then placing it on the next page, the text frame will be placed not on the page but far below the pasteboard. (It will have an X value of anywhere from 68 to 400 inches.) It also increases the size of the pasteboard. This happens regardless if the text frame has an object style applied with a position value, or if it has no object style applied.

It also happens if the the shift key is held down when the new frame is placed, and prevents placing more than one frame at a time.

It doesn't happen on every document, but once the bug occurs, it affects all frames/stories in the document, and the issue persists in new copies of the file, in an idml version of the file, and in the idml file if it is opened in earlier versions of InDesign.

It also happens on completely blank master pages, so it's not an invisible text wrap or something.