I am using Mathcad Prime 3.0 F000
I have Matchad 15 vers 050 & Prime 3.0. with the pc HP 735 G6 with processor AMD.
the excel have suddenn block.
If i use pc with intel processor and same installation (w10 office 365, & Matchad) i don't have this blocks.
I have tried office 365 32 & 64 bit but it have same problem