Hello,
Sorry to come back but after some days i v still the same issues sometime the collect pass but sometime not in evm.log i saw this error but i don’t understand where is the issues if someone can help 
[----] I, [2020-07-02T08:52:58.281400 #2094:9125f8] INFO -- : Exception in realtime_block :ems_refresh - Timings: {:collect_inventory_for_targets=>0.09415650367736816, :parse_targeted_inventory=>0.017689943313598633, :ems_refresh=>0.11212873458862305}
[----] E, [2020-07-02T08:52:58.281818 #2094:9125f8] ERROR -- : MIQ(ManageIQ::Providers::Amazon::CloudManager::Refresher#refresh) EMS: [fbf449c4-775d-4e77-8991-f78b1f571486], id: [9] Refresh failed
[----] E, [2020-07-02T08:52:58.282099 #2094:9125f8] ERROR -- : [NoMethodError]: undefined method `include?' for nil:NilClass Method:[block (2 levels) in <class:LogProxy>]
[----] E, [2020-07-02T08:52:58.282196 #2094:9125f8] ERROR -- : /usr/local/lib/ruby/gems/2.5.0/bundler/gems/manageiq-providers-amazon-8ac0dc3f8054/app/models/manageiq/providers/amazon/inventory/parser/cloud_manager.rb:327:in `block in flavors'
/usr/local/lib/ruby/gems/2.5.0/bundler/gems/manageiq-providers-amazon-8ac0dc3f8054/app/models/manageiq/providers/amazon/inventory/parser/cloud_manager.rb:319:in `each'
/usr/local/lib/ruby/gems/2.5.0/bundler/gems/manageiq-providers-amazon-8ac0dc3f8054/app/models/manageiq/providers/amazon/inventory/parser/cloud_manager.rb:319:in `flavors'
/usr/local/lib/ruby/gems/2.5.0/bundler/gems/manageiq-providers-amazon-8ac0dc3f8054/app/models/manageiq/providers/amazon/inventory/parser/cloud_manager.rb:9:in `parse'
/var/www/miq/vmdb/app/models/manageiq/providers/inventory.rb:42:in `block in parse'
/var/www/miq/vmdb/app/models/manageiq/providers/inventory.rb:39:in `each'
/var/www/miq/vmdb/app/models/manageiq/providers/inventory.rb:39:in `parse'
/var/www/miq/vmdb/app/models/manageiq/providers/base_manager/refresher.rb:141:in `parse_targeted_inventory'
/var/www/miq/vmdb/app/models/manageiq/providers/base_manager/refresher.rb:92:in `block in refresh_targets_for_ems'
/usr/local/lib/ruby/gems/2.5.0/bundler/gems/manageiq-gems-pending-e280ad44830f/lib/gems/pending/util/extensions/miq-benchmark.rb:11:in `realtime_store'
/usr/local/lib/ruby/gems/2.5.0/bundler/gems/manageiq-gems-pending-e280ad44830f/lib/gems/pending/util/extensions/miq-benchmark.rb:28:in `realtime_block'
/var/www/miq/vmdb/app/models/manageiq/providers/base_manager/refresher.rb:91:in `refresh_targets_for_ems'
/var/www/miq/vmdb/app/models/manageiq/providers/base_manager/refresher.rb:41:in `block (2 levels) in refresh'
/usr/local/lib/ruby/gems/2.5.0/bundler/gems/manageiq-gems-pending-e280ad44830f/lib/gems/pending/util/extensions/miq-benchmark.rb:11:in `realtime_store'
/usr/local/lib/ruby/gems/2.5.0/bundler/gems/manageiq-gems-pending-e280ad44830f/lib/gems/pending/util/extensions/miq-benchmark.rb:35:in `realtime_block'
/var/www/miq/vmdb/app/models/manageiq/providers/base_manager/refresher.rb:41:in `block in refresh'
/var/www/miq/vmdb/app/models/manageiq/providers/base_manager/refresher.rb:31:in `each'
/var/www/miq/vmdb/app/models/manageiq/providers/base_manager/refresher.rb:31:in `refresh'
/var/www/miq/vmdb/app/models/manageiq/providers/base_manager/refresher.rb:11:in `refresh'
/var/www/miq/vmdb/app/models/ems_refresh.rb:103:in `block in refresh'
/var/www/miq/vmdb/app/models/ems_refresh.rb:102:in `each'
/var/www/miq/vmdb/app/models/ems_refresh.rb:102:in `refresh'
/var/www/miq/vmdb/app/models/miq_queue.rb:479:in `block in dispatch_method'
/usr/local/lib/ruby/2.5.0/timeout.rb:93:in `block in timeout'
/usr/local/lib/ruby/2.5.0/timeout.rb:33:in `block in catch'
/usr/local/lib/ruby/2.5.0/timeout.rb:33:in `catch'
/usr/local/lib/ruby/2.5.0/timeout.rb:33:in `catch'
/usr/local/lib/ruby/2.5.0/timeout.rb:108:in `timeout'
/var/www/miq/vmdb/app/models/miq_queue.rb:477:in `dispatch_method'
/var/www/miq/vmdb/app/models/miq_queue.rb:454:in `block in deliver'
/var/www/miq/vmdb/app/models/user.rb:290:in `with_user_group'
/var/www/miq/vmdb/app/models/miq_queue.rb:454:in `deliver'
/var/www/miq/vmdb/app/models/miq_queue_worker_base/runner.rb:104:in `deliver_queue_message'
/var/www/miq/vmdb/app/models/miq_queue_worker_base/runner.rb:137:in `deliver_message'
/var/www/miq/vmdb/app/models/miq_queue_worker_base/runner.rb:155:in `block in do_work'
/var/www/miq/vmdb/app/models/miq_queue_worker_base/runner.rb:149:in `loop'
/var/www/miq/vmdb/app/models/miq_queue_worker_base/runner.rb:149:in `do_work'
/var/www/miq/vmdb/app/models/miq_worker/runner.rb:329:in `block in do_work_loop'
/var/www/miq/vmdb/app/models/miq_worker/runner.rb:326:in `loop'
/var/www/miq/vmdb/app/models/miq_worker/runner.rb:326:in `do_work_loop'
/var/www/miq/vmdb/app/models/miq_worker/runner.rb:153:in `run'
/var/www/miq/vmdb/app/models/miq_worker/runner.rb:127:in `start'
/var/www/miq/vmdb/app/models/miq_worker/runner.rb:22:in `start_worker'
/var/www/miq/vmdb/app/models/miq_worker.rb:398:in `block in start_runner_via_fork'
/usr/local/lib/ruby/gems/2.5.0/gems/nakayoshi_fork-0.0.4/lib/nakayoshi_fork.rb:23:in `fork'
/usr/local/lib/ruby/gems/2.5.0/gems/nakayoshi_fork-0.0.4/lib/nakayoshi_fork.rb:23:in `fork'
/var/www/miq/vmdb/app/models/miq_worker.rb:396:in `start_runner_via_fork'
/var/www/miq/vmdb/app/models/miq_worker.rb:386:in `start_runner'
/var/www/miq/vmdb/app/models/miq_worker.rb:437:in `start'
/var/www/miq/vmdb/app/models/miq_worker.rb:269:in `start_worker'
/var/www/miq/vmdb/app/models/mixins/per_ems_worker_mixin.rb:74:in `start_worker_for_ems'
/var/www/miq/vmdb/app/models/mixins/per_ems_worker_mixin.rb:52:in `block in sync_workers'
/var/www/miq/vmdb/app/models/mixins/per_ems_worker_mixin.rb:51:in `each'
/var/www/miq/vmdb/app/models/mixins/per_ems_worker_mixin.rb:51:in `sync_workers'
/var/www/miq/vmdb/app/models/miq_server/worker_management/monitor.rb:54:in `block in sync_workers'
/var/www/miq/vmdb/app/models/miq_server/worker_management/monitor.rb:50:in `each'
/var/www/miq/vmdb/app/models/miq_server/worker_management/monitor.rb:50:in `sync_workers'
/var/www/miq/vmdb/app/models/miq_server.rb:156:in `start'
/var/www/miq/vmdb/app/models/miq_server.rb:247:in `start'
/var/www/miq/vmdb/lib/workers/evm_server.rb:27:in `start'
/var/www/miq/vmdb/lib/workers/evm_server.rb:48:in `start'
/var/www/miq/vmdb/lib/workers/bin/evm_server.rb:4:in `<main>'
[----] E, [2020-07-02T08:52:58.282304 #2094:9125f8] ERROR -- : MIQ(ManageIQ::Providers::Amazon::CloudManager::Refresher#refresh) EMS: [fbf449c4-775d-4e77-8991-f78b1f571486], id: [9] Unable to perform refresh for the following targets:
[----] E, [2020-07-02T08:52:58.282402 #2094:9125f8] ERROR -- : MIQ(ManageIQ::Providers::Amazon::CloudManager::Refresher#refresh) --- ManageIQ::Providers::Amazon::CloudManager [fbf449c4-775d-4e77-8991-f78b1f571486] id [9]
[----] I, [2020-07-02T08:52:58.299481 #2094:9125f8] INFO -- : MIQ(ManageIQ::Providers::Amazon::CloudManager::Refresher#refresh) Refreshing all targets...Complete
[----] E, [2020-07-02T08:52:58.299750 #2094:9125f8] ERROR -- : MIQ(MiqQueue#deliver) Message id: [483719], Error: [undefined method `include?' for nil:NilClass]
[----] E, [2020-07-02T08:52:58.299973 #2094:9125f8] ERROR -- : [ManageIQ::Providers::BaseManager::Refresher::PartialRefreshError]: undefined method `include?' for nil:NilClass Method:[block (2 levels) in <class:LogProxy>]
[----] E, [2020-07-02T08:52:58.300179 #2094:9125f8] ERROR -- : /var/www/miq/vmdb/app/models/manageiq/providers/base_manager/refresher.rb:67:in `refresh'
Thanks
Bruno