First, there’s aleeady a thread about the effects of CS going bust here → https://forum.mustachianpost.com/t/what-would-happen-if-credit-suisse-goes-bust
Second, as I already replied there, CSIF funds will probably not really be affected by CS going bankrupt as these funds are in a separate special AuM bucket and also the securities in the funds are not CS (a small % is), but of other companies, which are not directly affected by CS going bankrupt, not more than any other funds. There may be some administrative issues in the beginning, but nothing dangerous.