I noticed an issue when I was testing but it turned out to be a global problem - it occurs for all error modals (this is especially visible when the error message contains stack trace), confirmation modals and others. Examples are the following:
The confirmation modal for processing schedules ("Do you want to save the Processing Schedule X?") breaks when one enters a very long processing schedule name without spaces (screenshot). With spaces, it works fine;
The same happens in the modal enabling one to add a processing period ("Add Processing Period for X schedule") when the processing schedule code is very long, with or without spaces;
The confirmation modal for processing periods ("Do you want to add the X Processing Period?") when the processing period's name is very long and without spaces; with spaces, it doesn't break.