Links to external files LO 6.1.5.0 onwards

Current Installation Windows 1809 build 17763.348 64Bit

			LO 6.0.7.3 64bit works fine.

			LO 6.1.5.2 64bit error below
			LO 6.2.0.3 64bit error below
			LO 6.2.1.2 64bit error below
LO profile has been reset.

I have file1.ods linking to file2.ods when function window wizard re-appears the = before the function(any function) has been replaced with a box character and the selected range has not been returned.
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Any suggestions?

This is still happening for me, recently did clean windows 10 re-install on 2 different machines, clean install of LO 6.2.5, different anti-virus on each machine, anyone anything I can try, still using 6.0.7.3 which works fine.