If you are seeing a message that says ‘Could not detect any changes’ it simply means that Simul was unable to detect any changes in the document between the version you have selected and the previous version.

This is not necessarily a problem, it’s just informing you that nothing was changed in that version.

It’s worth noting that while Simul will detect changes to text, images, graphs, etc it does nto detect formatting changes, so if the only thing that changes between Version 0.0.2 and 0.0.3 (for example) is that you change the font of a paragraph, Simul will not detect it.

This is by design, as formatting changes don’t fundamentally change the document and highlighting them all would make it more difficult what meaningful changes were made between versions.