The CFTC in the US have fined Société Générale SA $450,000 for failing to report trades to an SDR (Swaps Data Repository). The notice can be found here. The bank had implemented a software update in July 2014 which led to the problem. It was not fully fixed for some time afterwards.
In Europe, EMIR reporting has now been running for nearly three years. While there have been no fines for misreporting, regulators are beginning to issue notices outings various points that need to be improved. For example, the Central Bank of Ireland issued this letter in September, reminding market participants of several aspects of EMIR, such as the requirement to check messages that come back from the TR.
See here for a report on The Trade News web site, outlining fines imposed by the European Commission to three banks for alleged rigging of LIBOR. The energy and commodities markets are also seeing increased anti abuse scrutiny, both via REMIT, with several investigations, as well as MAR, which has applied from 3rd July 2016.