# Help debugging Sequence Diagram plugin

**URL:** <https://meta.discourse.org/t/help-debugging-sequence-diagram-plugin/40279>\
**Category:** Development\
**Created:** [February 28, 2016, 6:31am UTC](https://meta.discourse.org/t/help-debugging-sequence-diagram-plugin/40279 "2016-02-28T06:31:54Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![nskerl](https://avatars.discourse-cdn.com/v4/letter/n/13edae/32.png) [@nskerl](https://meta.discourse.org/u/nskerl)\
**Post date:** [February 29, 2016, 4:34pm UTC](https://meta.discourse.org/t/help-debugging-sequence-diagram-plugin/40279/2 "2016-02-29T16:34:50Z")

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I managed to make some progress by removing replaceBlock and simply doing the transform myself in the dialect.

I also switched to addPreProcessor() and this seems to work _ok_ for the preview window, but the main post still has some problems:

 ![](https://global.discourse-cdn.com/meta/original/3X/1/5/158b6132f61470e661856acea778701ef456da77.png)

There also seems to be some debounce affect that causes my preview window to fire decorateCooked on every other keystroke?

Any guidance is appreciated.

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