can't save playlist

after updating to the latest firmware my M6 does not save the current playlist to PLAYLIST1 anymore. The on-the-go one gets deleted but there is no PLAYLIST1 afterwards. I know that worked before my update.
Anone else having this problem ?
First I thought this could be a translation problem, but the other menu option "delete playlist" does the same.

I don't know what is happening with this ... I have experienced this too. What I did: Whilst the player is on, press and hold the enter button until the player turns off. Then turn it back on and your saved playlists should be there.

you are perfectly right. After Reset they are all there.
I also found out that if you save a playlist and connect to PC, you can see that the playlists are there but seem to have no "modified" date.
If you just copy them over to your PC, change their filenames and copy them back, they are instantly there and working.
This bug gets hopefully fixed since I can't make use of the on-the-go playlists when I am on a journey.
The other bug is the well-known hangup before playback starts.
Thanks for your reply !

just found out that the same problem is about recording from radio. The new files are there, but they have no "last modified" date and are invisible in the player until next system reset.