Drupal 9 Portal Apigee connection problem

Hi everyone,
I'm new to Drupal so obv going through some bumps. Currently working on Drupal 9-based apigee dev portal.

Set it up locally by using Apigee Kickstart (XAMPP server) since I'm on Windows 10 - all good and well. Site is up and such. Tried to set up Apigee connection: config -> apigee-edge -> settings: APIGEE EDGE CONNECTION SETTINGS

Put all my live creds and hit "Test" button - nothing. Checked the log report and found this php error:

TypeError: Apigee\Edge\Api\Management\Entity\Organization::setEnvironments(): Argument #1 must be of type string, array given, called in C:\apigee_local\vendor\symfony\property-access\PropertyAccessor.php on line 564 in Apigee\Edge\Api\Management\Entity\Organization->setEnvironments() (line 40 of C:\apigee_local\vendor\apigee\apigee-client-php\src\Entity\Property\EnvironmentsPropertyAwareTrait.php)

#0 C:\apigee_local\vendor\symfony\property-access\PropertyAccessor.php(564): Apigee\Edge\Api\Management\Entity\Organization->setEnvironments(Array)
#1 C:\apigee_local\vendor\symfony\property-access\PropertyAccessor.php(114): Symfony\Component\PropertyAccess\PropertyAccessor->writeProperty(Array, 'environments', Array)
#2 C:\apigee_local\vendor\apigee\apigee-client-php\src\PropertyAccess\PropertyAccessorDecorator.php(53): Symfony\Component\PropertyAccess\PropertyAccessor->setValue(Object(Apigee\Edge\Api\Management\Entity\Organization), 'environments', Array)
#3 C:\apigee_local\vendor\symfony\serializer\Normalizer\ObjectNormalizer.php(147): Apigee\Edge\PropertyAccess\PropertyAccessorDecorator->setValue(Object(Apigee\Edge\Api\Management\Entity\Organization), 'environments', Array)
#4 C:\apigee_local\vendor\symfony\serializer\Normalizer\AbstractObjectNormalizer.php(361): Symfony\Component\Serializer\Normalizer\ObjectNormalizer->setAttributeValue(Object(Apigee\Edge\Api\Management\Entity\Organization), 'environments', Array, 'json', Array)
#5 C:\apigee_local\vendor\apigee\apigee-client-php\src\Denormalizer\ObjectDenormalizer.php(111): Symfony\Component\Serializer\Normalizer\AbstractObjectNormalizer->denormalize(Object(stdClass), 'Apigee\\Edge\\Api...', 'json', Array)
#6 C:\apigee_local\vendor\symfony\serializer\Serializer.php(196): Apigee\Edge\Denormalizer\ObjectDenormalizer->denormalize(Object(stdClass), 'Apigee\\Edge\\Api...', 'json', Array)
#7 C:\apigee_local\vendor\symfony\serializer\Serializer.php(143): Symfony\Component\Serializer\Serializer->denormalize(Object(stdClass), 'Apigee\\Edge\\Api...', 'json', Array)
#8 C:\apigee_local\vendor\apigee\apigee-client-php\src\Serializer\EntitySerializer.php(124): Symfony\Component\Serializer\Serializer->deserialize(Object(stdClass), 'Apigee\\Edge\\Api...', 'json', Array)
#9 C:\apigee_local\vendor\apigee\apigee-client-php\src\Controller\EntityLoadOperationControllerTrait.php(43): Apigee\Edge\Serializer\EntitySerializer->deserialize('{\n  "createdAt"...', 'Apigee\\Edge\\Api...', 'json')
#10 C:\apigee_local\web\modules\contrib\apigee_edge\src\SDKConnector.php(282): Apigee\Edge\Api\Management\Controller\OrganizationController->load('first-american-...')
#11 C:\apigee_local\web\modules\contrib\apigee_edge\src\KeyEntityFormEnhancer.php(345): Drupal\apigee_edge\SDKConnector->testConnection(Object(Drupal\key\Entity\Key))
#12 [internal function]: Drupal\apigee_edge\KeyEntityFormEnhancer->validateForm(Array, Object(Drupal\Core\Form\FormState))
#13 C:\apigee_local\web\core\lib\Drupal\Core\Form\FormValidator.php(82): call_user_func_array(Array, Array)
#14 C:\apigee_local\web\core\lib\Drupal\Core\Form\FormValidator.php(273): Drupal\Core\Form\FormValidator->executeValidateHandlers(Array, Object(Drupal\Core\Form\FormState))
#15 C:\apigee_local\web\core\lib\Drupal\Core\Form\FormValidator.php(118): Drupal\Core\Form\FormValidator->doValidateForm(Array, Object(Drupal\Core\Form\FormState), 'apigee_edge_aut...')
#16 C:\apigee_local\web\core\lib\Drupal\Core\Form\FormBuilder.php(589): Drupal\Core\Form\FormValidator->validateForm('apigee_edge_aut...', Array, Object(Drupal\Core\Form\FormState))
#17 C:\apigee_local\web\core\lib\Drupal\Core\Form\FormBuilder.php(321): Drupal\Core\Form\FormBuilder->processForm('apigee_edge_aut...', Array, Object(Drupal\Core\Form\FormState))
#18 C:\apigee_local\web\core\lib\Drupal\Core\Controller\FormController.php(73): Drupal\Core\Form\FormBuilder->buildForm(Object(Drupal\apigee_edge\Form\AuthenticationForm), Object(Drupal\Core\Form\FormState))
#19 [internal function]: Drupal\Core\Controller\FormController->getContentResult(Object(Symfony\Component\HttpFoundation\Request), Object(Drupal\Core\Routing\RouteMatch))
#20 C:\apigee_local\web\core\lib\Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber.php(123): call_user_func_array(Array, Array)
#21 C:\apigee_local\web\core\lib\Drupal\Core\Render\Renderer.php(573): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#22 C:\apigee_local\web\core\lib\Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber.php(124): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure))
#23 C:\apigee_local\web\core\lib\Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber.php(97): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array)
#24 C:\apigee_local\vendor\symfony\http-kernel\HttpKernel.php(158): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#25 C:\apigee_local\vendor\symfony\http-kernel\HttpKernel.php(80): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1)
#26 C:\apigee_local\web\core\lib\Drupal\Core\StackMiddleware\Session.php(57): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#27 C:\apigee_local\web\core\lib\Drupal\Core\StackMiddleware\KernelPreHandle.php(47): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#28 C:\apigee_local\web\core\modules\page_cache\src\StackMiddleware\PageCache.php(106): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#29 C:\apigee_local\web\core\modules\page_cache\src\StackMiddleware\PageCache.php(85): Drupal\page_cache\StackMiddleware\PageCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#30 C:\apigee_local\web\core\lib\Drupal\Core\StackMiddleware\ReverseProxyMiddleware.php(47): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#31 C:\apigee_local\web\core\lib\Drupal\Core\StackMiddleware\NegotiationMiddleware.php(52): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#32 C:\apigee_local\vendor\stack\builder\src\Stack\StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#33 C:\apigee_local\web\core\lib\Drupal\Core\DrupalKernel.php(706): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#34 C:\apigee_local\web\index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request))
#35 {main}

Checked curl call to apigee and saw valid response there from apigee...

Seems to me like something isn't right with the way returned environments array is parse out in Drupal.

Any thoughts what could that be?

Many thanks in advance