If you encounter any bug in εχTEX please report them to the εχTEX team. The bug report should contain a minimal example demonstrating the problem and a description in which way the expected result differs from the result encountered. In addition you should enclose the relevant information about your environment. This should include:
The bug report can be filed directly at the bug tracker of εχTEX:
You can also report a bug via email to email@example.com. Here the same rules apply.