Problem with initiative rolls sheet - D&D 5e Edition (Shaped)

Hello, I'm not sure if this is a bug or we just do something wrong. When my players roll for initiative (they click on the nitiative modifier in their sheets) it only rolls a d20 without any modifier. They have a e.g. plus 3 but still the roll is only 1d20. Can anyone explain what is going on?

If you hover over the roll, what is it showing? Does it say DEX of [+0] or are the modifiers absent? Maybe a screen shot would help? One suggestion is to close out of the sheet, reopen and see if that fixes it. Also, change something, move off the change and then change it back to get the sheet workers going behind the scenes and see if that helps. Finally, in the settings/gear tab, make sure there is no debuff or anything.  good luck H

This is how it looks like. It happens constantly and on all sheets, even if we restart the game. I also tried and changed the initiative manually, with different modifiers etc. - no change still a flat d20. Screenshot below

If you notice the error messages in the chat. I would say that your token is not linked with the sheet and that is causing the issue.

Oh this indeed solves the issue. Thank you very much for explanation :).