Steps to Reproduce

http://10.1.3.45:8089/keikai-demo/excel_like

browser: Chrome (Incognito)

reference file: New Book (attached below)

issue1

1. copy and paste the cells from new book to kk
2. no response from kk, paste again, paste format inconsistent
   a. "This is Scenario xxx" not fully displayed
   b. scenario2's format missing

issue2 (merge&center1&2)

1. select B1:G10, click merge & center
2. cell merged but most words are hidden and flow to the left *different from excel's behaviour

issue3 (right parenthesis)

1. type "This is Scenario 2 (with duplicated phrases)"
2. notice that the function bar shows ")" but the cell doesn't

Current Result

as attached

Expected Result

Debug Information

Workaround