Sage TimeSlips BDE to Firebird Conversion Fails

Upgrading Sage TimeSlips version 2015 to 2019. The BDE database has to be converted to Firebird and during the process the conversion tool crashes with AppHangB1 error.

Description:
A problem caused this program to stop interacting with Windows.
Problem signature:
  Problem Event Name:      AppHangB1
  Application Name:      TSConverter.exe
  Application Version:      2.0.0.0
  Application Timestamp:      2a425e19
  Hang Signature:      c041
  Hang Type:      0
  OS Version:      6.0.6002.2.2.0.305.9
  Locale ID:      1033
  Additional Hang Signature 1:      3470f376fca118742a52762dedb45259
  Additional Hang Signature 2:      fe6e
  Additional Hang Signature 3:      08345124dbeb395d548908d64ac75350
  Additional Hang Signature 4:      c041
  Additional Hang Signature 5:      3470f376fca118742a52762dedb45259
  Additional Hang Signature 6:      fe6e
  Additional Hang Signature 7:      08345124dbeb395d548908d64ac75350

Specifically hangs when getting to Converting Features Tables