as the cards are customizable should be subject to the set work area.
make an attempt certainly not harmless.
by working area I mean this
https://knowledge.autodesk.com/it/s...9736ed68-16ee-42ea-b07b-e9f310cb2017-htm.htmlwhen you have autocad as you would like to go to tools>area work and save by name and save. when everything goes to husk you make tools> work area and call back the saved one.
then if possible try to analyze the situation where the menus disappear like: type of command launched, working time, type of file opened... to try to discriminate against events and to circumscribe the motivations of the event