I've noticed that in the WLM toasts, the user's display name is partial when they use the Plus! formatting. The formatting still takes place, but I assume the code to format the font is being counted against the maximum chars allowed in a standard WLM toast.
For example, the following:
[c=46]t[/c][c=12]e[/c][c=11]s[/c][c=10]t[/c]
Only shows "tes..." in the WLM toast. It is formatted correctly though:
tes...
s is not formatted, because I assume the rest of the format code was cut off.
If this cannot be fixed, maybe there should be an option to remove all format codes from the toasts?

So  what does everyone think about this?

unfortunately, this limitation is caused by Messenger itself, I cannot do much about it.

How about having an option to strip the format tags for WLM toasts? Would that be possible?

The main issue here is that Messenger itself cuts the string before adding it to the toasts so if format codes are present, Messenger cuts the string very short. Nothign I'll do will fix this error.

Oh, I see...
Well, I might have an idea, but you've probably already tried it...
First of all, it is possible to use a WLM toast with your own content? Or maybe have some option to completely disable WLM toasts and use MSG Plus Live toasts instead?
It's probably too much effort to even try to fix this bug, since it's not that serious.