Getting error while editing experience in AES - unable to fetch variable values for producer

[prakashknow]

Dear All,

Supposedly a weird behavior. I am a learner. I created an App, very basic app, with few fields, using AES, just to get some hands-on. Created a Standard catalog item (other experiences also created, but no issues yet). I tested it and worked fine. Issue is with Standard catalog item only, explained hereon. Later, I tried to add container with two columns and rearrange by moving the fields by drag and drop in the new format. All this from within the AES to organize it a bit. Objective was to stick to AES for all that is possible, without going to the "Maintain Items".  while saving, it said "unable to update the record", some kind of critical alert. I aborted and again when to edit the Experience to attempt one more time. This time while clicking to edit it says-> "unable to fetch variable values for producer".  Screenshots attached. Not sure what has gone wrong. 

Any pointer to resolve will help. Attached are screenshots.

[Dr Atul G- LNG]

Hi @prakashknow 

I build small small apps in AES but never got this error. Just for sure you are in right scope and right created the parameters. Try to clear the instance cache and try. 

[prakashknow]

Hi @Dr Atul G- LNG : Thanks for responding. I did <instance URL>"/cache.do". However, it is not resolved.

[prakashknow]

Solved: Flush Cache - ServiceNow Community <== I used this to clear cache, however no luck. still stays same. 

[Dr Atul G- LNG]

Not sure, by create another app and then (may be very small in  dev and then see. It will give you idea that issue with previous parameter or platform issue.