Working in Incognito mode only

Hi, After some great help from support I have 3D Experience working well on all three browsers but only when using incognito mode.

It's more of a nuisance than a problem and probably something to do with the settings on my computer.

Just wondering if anyone has any ideas?

Regards, Lee

Edu ​​​​​​​3DEXPERIENCE ​​​​​​​