If _this_ is what the MIR Icon looks like on your system, then there's indeed something broken. 8-0 ... here you see the Icon's actual shape and the functions of all its elements.
-> https://www.vsl.info/en/manuals/mir-pro/creating-new-project#mir-icon-overview
If the problem persists please get in contact with support@vsl.co.at, including as many information about your setup as possible (OS type and version, host type and version, RAM size, CPU, any other kind of potentially influential hard- or software components).
Re - Instrument Profile: If you're referring to the Orchestral Strings for Vienna Instruments, then there's a dedicated profile available for them (01/21), based on similar directivity measurement like the ones for the Solo Violin shown in my previous posting (... which means that there is pronounced signal dispersion towards the ceiling). If you want to avoid any kind of directivity then please use the Omni-setting (00/99a) from the General Purpose profiles, or the Wide Cardioid (00/99b) if you want to hear at least a bit of emphasis towards the front.
HTH,