My online training course locked up after answering one of the knowledge questions mid module. I am currently in the Meters & Instrumentation module and was answering the knowledge question at the end of the Direct Reading Instruments section. I have exited and logged out/in a few times. I am able to go back a few slides but when I get to the knowledge question at the end it currently is just a blank slide. And it says I must answer the question before moving on. But there's nothing shown to select thus I can't progress on. Thanks