Quantize error, Cubase 11 quantized EVERY track

I opened up an orchestral project in Cubase 11 with lots of VST instrument tracks and to my horror noticed that every part of the entire project has somehow been quantized to 8-notes. Last time I saved and closed the project everything was ok. This is the second time this has happened. The project was originally created in Cubase 7.5 but has been working mostly just fine after upgrading to 11. What is this?!