On 2019-05-20, Neal Becker wrote: > Does lyx offer any solution to 'too deeply nested' for beamer + itemize? > itemize allows just 3 levels.
You may try the "enumitem" module and customize the lists, but it is possible that this will not help because of a clash with the beamer list redefinitions. Then, changing your lists to not use so many levels or using simple paragraphs on excessively nested parts is the only way out that I know of. Günter