Yes. This is an interesting compilation of rumours and hearsay, with the usual caveat that it's all unsourced and could be inaccurate:
This part was interesting:
That suggests a significant tonal mismatch. I'm sure Ace Ventura isn't what Lucasfilm wants for Han Solo.
Also, this section implies that they were playing fast and loose with Star Wars canon, which probably isn't something that the studio could accept given that it's a piece of a far bigger network of films.