Spectrum mibtools dump to .sim does not work on the webapp as the dump to type sim is not an options. The only option is to dump to .csv which cannot be used to create a device simulation.
Release : 21.2
Component : Spectrum OneClick
Configuration issue.
Please login webapp admin page and "off" the option as below - "Transparent Save File Dialog" as below, then it is working as expected providing option to save as .sim
Close the existing webapp session and launch new session and verify same
It is providing option to save as .sim as below.