You may have the dreaded "Instantly vanishes" syndrome.
There are several discussions of this around here. For example:
Anyone worked out how to recover vanishing X1?
The best place to start any diagnosis and recovery is with the "X1 Index Repair Tool".
http://www.x1.com/cs/x1_index_repair_tool.exe
I don't know if the X1 installation package now includes that tool. Might be a good idea if it did.
There are several discussions of this around here. For example:
Anyone worked out how to recover vanishing X1?
The best place to start any diagnosis and recovery is with the "X1 Index Repair Tool".
http://www.x1.com/cs/x1_index_repair_tool.exe
I don't know if the X1 installation package now includes that tool. Might be a good idea if it did.