PS3 CEX 1.8.x playlist scanning & editing

Scanning content to create a playlist hangs. Normal or manual. Every version since 1.7.3 (I believe) has had this issue. Retroarch is still responsive, just the dialog never moves passed scanning content and nothing ever results from attempting this action.

I have had to find a workaround by creating the playlist on other systems such as WiiU and Switch and manually editing the paths with replace all in notepad before playing them on my PS3 system. When the paths are all correct this works, however a similar issue still pops up when attempting to edit the associated core. I believe the underlying problem might have something to do with access to the playlists system path on the ps3 within retroarch. It has read access, the issues seems to arise when it attempts to write anything to those files.

Start by reproducing both normal and manual playlist scanning on PS3 CEX 1.8.x, then test editing the associated core. Inspect how RetroArch accesses and writes playlist files on the PS3 system path; no source files or tests are named in the issue. Done means scanning completes and playlist and core edits persist on PS3.