I have problems with Chains in new Audacity 2.2.0 (Linux Mint 18). If I use chain with effects eg. StereoToMono + Limiter + Export to OGG, everything is OK. Unlike StereoToMono + Distortion (or BassAndTreble, Compressor etc.) + Limiter + Export to OGG, which cause Audacity crash.
Unfortunately this is a bug that appeared in version 2.2.0 and was not noticed until after release.
A new release is planned for the beginning of December, which is primarily a bug-fix release, and includes a fix for this bug.
If you need to use chains between now and the release of 2.2.1, you could either revert back to Audacity 2.1.3, or build Audacity 2.2.1 alpha from the sourcecode from: https://github.com/audacity/audacity