I have a lot of layouts that display a concatenated Merge "text & number" Fields.
I hope this is not just me and I may be of my rocker.
But, It has been understood since pre .fp7.
That the leading merge field "<" as set, controls the format of "TEXT" to last ">" be it Style, Size, Font, Color, etc..
And That Any Item past the last ">" stands upon it's own entered format.
This is all well and good & works in most all situations, However, try this 4 part string:
Text <<TestField>>AlphaNumeric OtherText
 "Text" - the word
 <<TextField>> (Any Table Field)
 AlphaNumeric (An immediately trailing character (no space) )
 "OtherText" - the word
Written Merge Display String
Text <<TestField>>: OtherText
The Merge Field  & the trailing AlphaNumeric  is set to BOLD or any Other Format.
Expected result is:
Text TestField: OtherText (  &  are Bold )
Actual result Is:
Text TestField: OtherText ( Only  is Bold )
The trailing  now controls 
Please Note; that if there is a space between  and  the problem does not exist, but that is not grammatically correct.
I know this is a Nit Pick, but when I write a text string I would hope it would show what I wrote.
Hope this is clear & I have not missed something,