Question5Replies73Views _JVV_Sharma Member since 2011 43 posts PEGA Posted: 3 years agoLast activity: 3 years 1 month ago Closed Solved Designer studio - none of the explorers working except recentWe are on Pega CSI 7.22 and Pega7.2.2We recently upgraded from 7.21 to 7.22 of CSI and 7.2.1 to 7.2.2 of Pega.After that, we are not able to access the developer studio explorers - Data, App or any other except recent. (no navigation list shows up there)When we turn on the tracer, it shows up. I landed in below post and tried the option that worked for the user - Regenerate pzControl Library and switched applications. That did not help. https://pdn.pega.com/community/product-support/question/app-explorer-71…ThanksViswa Low-Code App Development Dev/Designer Studio ×Close popoverFacebookTwitterLinkedinEmail Copy Link Copied! Moderation Team has archived post This thread is closed to future replies. Content and links will no longer be updated. If you have the same/similar Question, please write a new Question. Posted: 3 years agokumaa33 PEGA replied to _JVV_SharmaCould you please once try with revalidation of rule. Thank you -Abhishek Posted: 3 years ago_JVV_Sharma PEGA replied to kumaa33That did not help either. Accepted Solution Posted: 3 years ago_JVV_Sharma PEGA replied to _JVV_SharmaAble to find a solution to this issue. We had three hotfixes in a DL that we received (DL-67122.zip) that we were using the hotfix manager to apply. But, these must be unzipped and imported as individual JARs (three JARs are there) hfix-31078 hfix-31428 hfix-32364 And then restart the App server. Posted: 3 years agoMarissaRogers MOD replied to _JVV_SharmaHello! Do you mind sharing the SR ID that you used to obtain the Hotfixes? Thanks! Posted: 3 years ago_JVV_Sharma PEGA replied to MarissaRogersI would try to get it and update it once I have.