Hi all, I am supporting a legacy application in LV2010, running on a realtime PXI controller. The application is throwing occasional TDMS errors, typically -2505, when I do TDMS Flush or TDMS Close operations. The description of this error is simply "LabVIEW failed to write data to the TDMS file," which doesn't really tell me what happened. Every time I write or flush, the same quantity of data is being written, and most of the time, it operates as expected. After iterating for anywhere between 2 and 14 hours, though, it eventually throws the error. Does anyone know in more detail what this error means, and how to deal with it? Thanks!