Does Test Complete support Adobe Acrobat DC (v2018.011.20035)

Test Complete version we are running is (12.42.3048.7 x64)
Scripts use VBScript

We have test scripts that are able to find multiple Adobe Acrobat (.pdf) files using Adobe Acrobat (v.11).
If we run those same scripts with the new version of Adobe Reader DC (v2018.011.20035) Test Complete cannot find any (.pdf) file that is not the top most (.pdf).

Has anyone else run into this issue?

Scenario: Two pdf files are open.
"document_DR1.pdf - Adobe Acrobat Reader DC" is top most
"document_DR0.pdf - Adobe Acrobat Reader DC" is one layer below

Call 1 that is always successful:

Set lclPDF = Sys.Process("AcroRd32").Window("AcrobatSDIWindow", "document_DR1.pdf - Adobe Acrobat Reader DC", 1)
'After opening we process what we want to do then close this file.
'This leaves just the second (.pdf) file open

Call 2:

Set lclPDF = Sys.Process("AcroRd32").Window("AcrobatSDIWindow", "document_DR0.pdf - Adobe Acrobat Reader DC", 1)

Call 2 always fails with a "Window cannot be activated" error.
Peaking at the window using the Object Spy (while the script is paused) shows that the window IS visible AND activated AND accessible.

We have tried. Activate(), Select(), SetFocus()

Nothing seems to work.

Any ideas?

Thank you.