It might sound crazy, but I think just resizing your caption might reveal the text which you feel are missing!
I have actually 'faced' something like that!
Sadly that won't work.
In the text caption box the text is for example " hello $$textentry1$$", even when i preview/publish I cannot see that entire caption....not even the word "Hello".
But if I remove the "$$textentry1$$", the "Hello" reappears..
Can you please insert a screen capture of exactly what you are seeing? Or possibly attach a zipped up version of your .CP file so that we may see first hand.
I would agree with t800v100 in that likely the caption just needs to be resized somewhat larger in order to fully see everything.
Helpful and Handy Links
Just another idea: does the value of your variable contain any 'combination characters' just like 'ù, é; ÿ..'. This causes problems with the rest of the text in the caption (bug in CP4).
thanks all, I fixed the problem by re-installing it...