Lock error trying to save a PCB - Software - KiCad.info Forums

(apologies if this is in the wrong category) I have been working on a PCB which saved fine yesterday. Made some minor tweaks today and on saving, I’m seeing the following: Can I get some advice on how to proceed? There’s only myself using the software and file system so I know it hasn’t been grabbed by someone else. Files exist on a OneDrive folder and definitely exist on the local filesystem. EDIT: I saved a copy (ok), closed and then tried re-opening the PCB and got this error

Create a Project in InspectAR From KiCAD

Panelizing a PCB in KiCad

Lock error trying to save a PCB - Software - KiCad.info Forums

Schematic error - Schematic - KiCad.info Forums

My PCB layout editor refuses to load? - Layout - KiCad.info Forums

Kicad Board Edge Error with Kicad Stepup - Software - KiCad.info

EasyEDA Tutorial

MMJoy PCB design - #36 by gadget - Hardware & Tech Questions

KiCad unable to open PCB more recent version than From

Error exporting schematic to PCB - Layout - KiCad.info Forums

Error: board line missing or malformed - Layout - KiCad.info Forums

Schematic and PCB problems after upgrading from V6.x to V7.x

SOLVED] Error when updating the PCB after changing the schematic

Getting Started with KiCad Version 6 : Beginner's Tutorial to