I just made a clean install of 1.8.1 on a linux ubuntu 12.10 machine. When trying to send an e-mail with swiftmailer I get the following error:
preg_match(): Compilation failed: internal error: previously-checked referenced subpattern not found at offset 4246
Googling it I find that it appears to be a problem with pcre. Apparently 8.12 has some issues that are fixed in 8.13 (The current version of pcre is 8.32.). At least that's what I gathered, I could be wrong.
I have NO idea how I would upgrade pcre to 8.32 in xampp. Does anyone know how?