Catalog codes not getting displayed in Field- QS41

During my customisation activity, codes of catalog profiles are not getting displayed in SAP screen. Field for codes are showing as blank grey area in QS41 Tcode. If I try creating same codes again, system throwing error saying "key for entry is exisying already".

Another observation is in the initial screen of QS41 if I select catalog and codes from folders all codes we can see for selection in initial screen, but same is not getting displayed in field for codes in QS41, its showing blank grey fields. Could anyone tell me what might be reason. Its happening for standard catalog profiles also.

Could anyone tell me what might be the reason.