@Lee ********
your situation is not unlike many others caught with change of US Embassy stopping issuing the Annual Affidavit of Income Letter.
May I ask what is your plan going forward?
While you may get a second Tourist Visa from Vientiane, that gives you up to 90 days with extension.
After which you could do two land border runs during 2020...plus 30 days extensions ...gives you added 4 months.
That's up to 7 months more in Thailand.
Beyond that I doubt you will be able to get another visa in SE Asia.