I have installed the current version of VimSim ( SimVimCockpit_v0_9_51c ).
I use Windows 10
If I temporarily disable SimVim with the "PluginAdmin" I can use the DataRefTool. After that I activate SimVim again. This is how it works at first. But maybe we will find the cause.
My FF A320 MCDU runs very well with SimVim for some time.Many thanks for that.
I also plan to switch my A320 pedestal to SimVim. Currently I use an Arcaze USB interface, but SimVim is more flexible.
With kind regards