F-PLN unusable after inserting a SID

[Hansvanwijhe]

After inserting a SID in the F-PLN the F-PLN in the MCDU becomes unusable, The F-PLN can no longer be opened, all other features in the MCDU do still work. This happens with both Dev mod and CFBW in the latest FS2020 update (1.14.5.0). How can I work around this new "feature"?

Also many waypoints vanished in the haze for no apparent reason.

Thanks for any hints or help,
Hans