The Exclude syntax has changed.
For Example on Joomla 3 the exclude condition was something like

{show accesslevels!="Level 01"}{CONTENT}{/show}

That would mean if you have access Level 01 you wouldn't be able to see that content.

But now, the syntax has chaged to:

{show accesslevels="!Level 01"}{CONTENT}{/show}

Instead of having the Exclamation (!)at the end of access levels, {show accesslevels!="Level 01"}
Now it goes on the beginning of the level {show accesslevels="!Level 01"}

Question is:
How can I get around that, without having to rewrite all of the conditions?

Thanks!

Awesomeness! The development pro version 4.2.1 works fine.

Thank you!