Fortunately, there is a workaround, which takes just a few seconds to set up. Follow these steps:
1) Click the "Add Column" button, which looks like a plus symbol (+) inside a circle at the top of the Tweetdeck browser screen.
2) In the search field (shown in the screenshot below) add the following text:
from:*****.... where "*****" is your Twitter handle without the "@" symbol. In my case, I put "from:ilamont", as shown below:
Press the "Search" button, and the column will appear in the right-hand slot.