Certain actions with patterns have attributes with options. For instance, the Rename action can use the name attribute/element in its pattern, which has Title Case and other options. The bottom of the pattern editor displays an "Example: …" line that may indicate results of options applied to attributes. But some options, like Replace text… for name, have no modification indicator at this level; it's has to be explicitly checked by selecting the option.
If that explanation seems muddled these images should clarify it. First, a rule with a Rename action:
Next, the pattern editor for that action:
In its Example: line it looks like name and extension have no options applied, reenforced by this menu when name is selected:
Note that Replace text… is unchecked, perhaps a bug because selecting it displays this:
Surprise -- there's no previous indication that a text replacement is in effect for this rule/pattern/attribute until explicitly selecting the option for it!
Hopefully the issue's obvious now.
It's tedious drilling down this deeply to determine which options, if any, are active for pattern attributes. Just a simple "(un)modified attribute option(s)" indicator (e.g. colored gumdrop: red: modified, green: unmodified) at the pattern editor level, augmenting the Example: line, would be a much appreciated improvement. Per-attribute indicators might be ideal, if possible without being unwieldy. An indicator at the rule level is another possibility. And there may be other contexts where similar higher-level indicators would be useful.
Thanks for any attention to this!