Custom CSS cut off randomly

Hi,

Great easy to use plugin!

Just one problem:

Now and again, on my current site im editing and another site, the custom css crashes, then when it loads back it has wiped everything past a certain point (about 150 lines).

It doesnt go back in time and bring back old stuff etc. Still have the new stuff I have added at the top, just lost anything below 150ish lines…

Any ideas?

Thanks

https://wordpress.org/plugins/simple-custom-css/