[Bug 50846] New: Enterprise Architect EA.Interop.DLL generate OLE/RPC error when accessing SQL databas (MySQL ODBC driver)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50846

Bug ID: 50846
           Summary: Enterprise Architect EA.Interop.DLL generate OLE/RPC
                    error when accessing SQL databas (MySQL ODBC driver)
           Product: Wine
           Version: 6.4
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: comsvcs
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail]
   Regression SHA1: c9cc098ccd7f0cdb82b8e52d00c415042c5ff717
      Distribution: ArchLinux

Created attachment 69656
  --> https://bugs.winehq.org/attachment.cgi?id=69656
Log of failure

I have a C# program which uses the EA.Interop.dll(shipped with Enterprise
Architect 14) for automating Enterprise Architect which generates the following
error

0140:err:ole:get_stub_manager_from_ipid not found for ipid
{00000006-0124-0120-b03d-2405ea237388}
0140:err:ole:dispatch_rpc no apartment found for ipid
{00000006-0124-0120-b03d-2405ea237388}
013c:err:rpc:I_RpcReceive we got fault packet with status 0x80010108
0024:fixme:ole:NdrClearOutParameters (0032F0B4,001DF0FC,0032F800): stub

followed by a System.Runtime.InteropServices.COMException (0x80010108) which is
(HRESULT RPC_E_DISCONNECTED).

The error only appears while using a SQL database and the Exception is thrown
as soon as you access any object in the SQL backed project through Enterprise
Architects COM interface.

Accessing the database through the Enterprise Architect GUI works as expected.

I bisected the issue to

#first bad commit: [c9cc098ccd7f0cdb82b8e52d00c415042c5ff717] comsvcs: Create
MTA without initialization thread.

commit c9cc098ccd7f0cdb82b8e52d00c415042c5ff717
Author: Nikolay Sivov 
Date:   Mon Oct 19 12:43:04 2020 +0300

comsvcs: Create MTA without initialization thread.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49679
    Signed-off-by: Nikolay Sivov 
    Signed-off-by: Alexandre Julliard

Reverting the commit on master (wine-6.4) fixes the issue.

The prefix is a 32bit prefix with "winetricks  msxml3  msxml4 msxml6 mdac28",
mysql-connector-odbc-5.3.6, and Enterprise Architect 14.