data/text entered in Calc cells goes invisible

pressing f2 to edit doesn’t show the cell content…
i tried to uncheck the Use OpenCL but nothing changes

Could you add a bit more detail please? How have you concluded that this is a visual glitch relating to OpenCL?

Does this happen in a particular cell in a particular spreadsheet, or does f2 not work at all?

Does anything happen when you press f2? On some computers the function keys are configured to do other things, like changing brightness or volume. Also, sometimes other programs, such as a window manager, can use the same keys as Calc. What operating system are you using?

Cell content is seen in the Input Line? Sheet is protected?

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