We are experiencing a problem with the online validator hanging while validating files. This appears to be a problem related to the combination of XML parser and web application toolkit we are using. Unfortunately we cannot get this to work reliably so will have to completely re-write the validator. If you need to validate files we recommend to do so using the Bio-Formats command line bftools.
For further information check the OME FAQ.
We are sorry for the inconvenience this may cause.