IBM Db2 Connect Enterprise Edition has broken Zowe db2 plugin

[spufidoo]

Hi. I'm having trouble with my db2 plugin.

1. I managed to install it a couple of months ago, but the "zowe plugins validate db2" showed "The specified plugin 'db2' has not been installed into your CLI application." Despite that, I could issue commands and queries to Db2 successfully.
2. I then managed to get the Db2connect VSCode extension working nicely.
3. I then tried to get Python talking to Db2/z, but kept on getting license errors - despite the fact that my enterprise license worked for the other plugins.
4. I was told to install IBM Db2 Connect, which I did. Python STILL doesn't connect to Db2, and now the Zowe Db2 plugin has stopped working, and the Db2connect VSCode extension has stopped working.
   What can I do?

[spufidoo]

Further info:
VSCode/Help/About:
Version: 1.47.3 (user setup)
Commit: 91899dcef7b8110878ea59626991a18c8a6a1b3e
Date: 2020-07-23T13:12:49.994Z
Electron: 7.3.2
Chrome: 78.0.3904.130
Node.js: 12.8.1
V8: 7.8.279.23-electron.0
OS: Windows_NT x64 10.0.17134

>zowe --version
2.36.4
>node --version
v12.18.2
>npm --version
6.14.5
>python --version
Python 3.8.3
>db2level
DB21085I This instance or install (instance name, where applicable: "DB2") uses "64" bits and DB2 code release "SQL11050" with level identifier "0601010F".
Informational tokens are "DB2 v11.5.0.1077", "s1906101300", "DYN1906101300WIN64", and Fix Pack "0".
Product is installed at "C:\PROGRA~1\IBM\SQLLIB" with DB2 Copy Name "DB2COPY1".
>zowe plugins validate db2
The specified plugin 'db2' has not been installed into your CLI application.
>zowe db2 execute sql --query "select current timestamp from sysibm.sysdummy1"
Command Error:
Expect Error: Required parameter 'hostname' must be defined
>zowe db2 execute sql --query "select current timestamp from sysibm.sysdummy1" -H xxxx -P xxxx -u xxxx --pw xxxx
Command Error:
DB2 ODBC Driver Error: [node-ibm_db] SQL_ERROR
Error Details:
Error: CLI0600E Invalid connection handle or connection is closed. SQLSTATE=S1000
SQLCODE: -1
SQLSTATE: S1000

[zFernand0]

Hey @spufidoo,
Does the issue still persist in newer versions of the plug-in?