
The file RJ TE tries to load is the one during previous session there was a problem with, and on which it hung. It was a PHP file, wherein before opening PHP tag I tried to input HTML tag to try out new features in the style attribute. I could edit TXT and MD files without a problem, but not PHP.
Edit: I managed the situation; alas, I must confirm problem with PHP files (multihighlighter). And HTML files, too: as soon as I open new one, editor hangs. I guess I'll revert to previous stable.