I am finding issues with PHPStorm corrupting my files. l've narrowed it down to the copy and paste functionality. I can copy WITHIN a stylesheet or an HTML page, but if I try to copy and paste from one sheet to another my code gets corrupted. This has occurred in both 2018.2 and 2018.3 versions.
I can copy an entire page in Windows and open it in Storm without issue, but creating a new sheet in Storm and copying code from an existing sheet into the new one corrupts the files and I can't even delete the new sheet or copied code to return to a stable state. I have to clear the cache and create a new project with my backups to have a usable project to work with.
I am working in Windows 8.1 on a Lenovo Thinkpad with 12gigs RAM.