Just updated to V26.0.3 using latest patch and I found out that the application has reverted to "Demo" mode, - unable to Save etc. Seems to have lost all registration details.
Had to de-install and re-install to revert to V26.0.2 to continue working.
Have made Tech Support Aware.
Update 31/7/23. New V26.0.4 now released to overcome this issue.
It's been reported and should be corrected very soon.
Please note that now V27 is active, the check for updates link will no longer work in V26. Instead, use [Help], [Web Home Page], then [Technical], [Updates] to download the last V26 update (as soon as the page has been corrected, of course!)