Jira fields not found when creating a transition rule

[Shady Hussein]

I am trying to create a rule in the workflow for the transition between two statues. As you can see in my screen shot, i can't seem to find all the fields. I want to create a rule against "original estimate". 

Does anybody have a clue why i can't see all the fields ?. 

[Nic Brough -Adaptavist-]

Which fields are you looking for, and do they exist for the issue type you are editing the workflow for?

[Trudy Claspill]

The OP said in the post that Original Estimate is the field they want for the rule.

[Nic Brough -Adaptavist-]

Argh.  I am sorry @Shady Hussein 

I really need those new glasses (Friday is when I get the next attempt, now that they've finally understood varifocals don't work for me)

"Original Estimate" is not really a field, it's a fragment of the estimation functionality.  In company-managed projects, I call it a "compound field" - the "time tracking field" presents up to seven different facets of itself in places.  Team-managed projects are a bit behind. 

In Team-managed projects, although it's offered to us as a standard field, Automation has not yet been coded to deal with the compound "time tracking" yet.

We will need to look elsewhere (for now)

Forget "original estimate" conditions for now.  What, in plain language (don't worry about Jira-speak), are you looking to do?  It's a transition rule, so maybe it is something like "I don't want people to be able to start on work that has no estimate"?