No text in message writing area on WeChat with Wine and Ubuntu 16.04

After solving the non-rendering Chinese fonts with regedit WeChat is mostly working.
However, the message typing area does not display the text being typed.

Observed behaviour:

• Typed text is being correctly rendered in the top left Search box;
• Text is not being rendered in message typing area;
• One is still able to send messages correctly by typing something and pressing Send (S) or pressing Enter. (You just can't see whatever you're typing.)

Terminal output whenever a character is typed in the writing area:

0009:fixme:richedit:fnTextSrv_TxDraw 0x2919368: STUB
0009:fixme:richedit:ME_GetTextEx GETTEXTEX flags 0x00000004 not supported

System details:

• Ubuntu 16.04 LTS
• wine-3.21 (Staging)
• WINEARCH=win32
• WeChat 2.6.6.25

Solution 1:

Digging a bit deeper and googling the fixme error lead me here.

Turns out running winetricks riched20 will solve this problem.