When putting a plugin onto a blog post which requires parameters, the parameters are not passed in or are passed in as an &. This happens when the => syntax is used, or quotes are used around the parameter. These are otherwise fine when in a wiki page.
Most plugins appear to be affected on my installation - which was an upgrade from 1.8.4 to 1.9.2.
They render okay when viewing individual posts, or previewing, which leads me to beleive it is in tiki-blog_view.php somewhere.
After diffing the files, the largest visible change was the addition of categories into the blog, this is however not affected by turning off the feature in admin.
I am putting this high on my own priority list as I cannot upgrade my live site to 1.9.2 (although it has had some secuirty fixes put on it) until this is solved as I do not want to break my history of blog posts using plugins.
Perhaps it is worth a shot on this site or tikiwiki.org to see if plugins are affected here as well with that.
To help developers solve the bug, we kindly request that you demonstrate your bug on a show2.tiki.org instance. To start, simply select a version and click on "Create show2.tiki.org instance". Once the instance is ready (in a minute or two), as indicated in the status window below, you can then access that instance, login (the initial admin username/password is "admin") and configure the Tiki to demonstrate your bug. Priority will be given to bugs that have been demonstrated on show2.tiki.org.
To help developers solve the bug, we kindly request that you demonstrate your bug on a show.tikiwiki.org instance. To start, simply select a version and click on "Create show.tikiwiki.org instance". Once the instance is ready (in a minute or two), as indicated in the status window below, you can then access that instance, login (the initial admin username/password is "admin") and configure the Tiki to demonstrate your bug. Priority will be given to bugs that have been demonstrated on show.tikiwiki.org.