Piano Roll

[SamsMusic]

Hi, its about the piano roll.
when I open the software, it opens, but from a certain moment, it does not open anymore ...
Thanks

[musikbear]

Hi,

Hii, Welcome to the Forum !
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piano roll : from a certain moment, it does not open anymore

...

I think you may have pushed it outside view, try looking to the right
If thats not it, please post your:
* OS (+service-pack-version)
* lmms version
* hardware specification (ram & soundcard is the most important)
* a screenshots of error-state -if any oddness appear