Notify your lawyer ahead of time about this issue and the information that you received about the problem. Unfortunately the courts seems to think any device put into place to monitor people is just the greatest when in reality we find out there are so many problems.
I am not sure whether this particular glitch is rare or typical, but keep a written list of any difficulties you encounter with the device and whatever you do, do not drink while you have that device (whether you ar on bond or on probation.)
Although I have answered the question to try to help you, you should consult with a lawyer in your area in person on the matter. In addition, my answer does not establish an attorney-client relationship between us.
As noted, it is best to prepare your defense in case you're asked about this situation. Keep a log of when you referenced the machine, spoke with agents and investigated the information. As these devices become more common, their "glitches" become more obvious.
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