Jenkinsfile only fetched after second build after commit

Jenkins 2.46.3 running on windows server 2012 Standard on Tomcat 8.5 plugins Nome ↓ Versão Activo ace-editor 1.1 true ant 1.5 true antisamy-markup-formatter 1.5 true authentication-tokens 1.3 true backup 1.6.1 true blueocean 1.0.1 true blueocean-autofavorite 0.7 true blueocean-commons 1.0.1 true blueocean-config 1.0.1 true blueocean-dashboard 1.0.1 true blueocean-display-url 2.0 true blueocean-events 1.0.1 true blueocean-git-pipeline 1.0.1 true blueocean-github-pipeline 1.0.1 true blueocean-i18n 1.0.1 true blueocean-jwt 1.0.1 true blueocean-personalization 1.0.1 true blueocean-pipeline-api-impl 1.0.1 true blueocean-pipeline-editor 0.2.0 true blueocean-rest 1.0.1 true blueocean-rest-impl 1.0.1 true blueocean-web 1.0.1 true bouncycastle-api 2.16.1 true branch-api 2.0.9 true build-pipeline-plugin 1.5.6 true build-timeout 1.18 true build-token-root 1.4 true cloudbees-folder 6.0.4 true conditional-buildstep 1.3.5 true credentials 2.1.13 true credentials-binding 1.11 true delivery-pipeline-plugin 1.0.1 true display-url-api 2.0 true docker-commons 1.6 true docker-workflow 1.11 true durable-task 1.13 true email-ext 2.57.2 true envfile 1.2 true external-monitor-job 1.7 true external-workspace-manager 1.1.1 true favorite 2.1.0 true file-operations 1.6 true git 3.3.0 true git-client 2.4.6 true git-server 1.7 true github 1.27.0 true github-api 1.85.1 true github-branch-source 2.0.6 true github-organization-folder 1.6 true google-login 1.3 true gradle 1.26 true greenballs 1.15 true groovy 2.0 true groovy-postbuild 2.3.1 true handlebars 1.1.1 true htmlpublisher 1.13 true icon-shim 2.0.3 true jackson2-api 2.7.3 true javadoc 1.4 true job-dsl 1.63 true job-restrictions 0.6 true jquery 1.11.2-0 true jquery-detached 1.2.1 true junit 1.20 true ldap 1.15 true mailer 1.20 true mapdb-api 1.0.9.0 true matrix-auth 1.6 true matrix-project 1.11 true maven-plugin 2.15.1 true metrics 3.1.2.10 true momentjs 1.1.1 true pam-auth 1.3 true parameterized-trigger 2.33 true pipeline-aggregator-view 1.7 true pipeline-build-step 2.5 true pipeline-github-lib 1.0 true pipeline-graph-analysis 1.3 true pipeline-input-step 2.7 true pipeline-milestone-step 1.3.1 true pipeline-model-api 1.1.4 true pipeline-model-declarative-agent 1.1.1 true pipeline-model-definition 1.1.4 true pipeline-model-extensions 1.1.4 true pipeline-rest-api 2.8 true pipeline-stage-step 2.2 true pipeline-stage-tags-metadata 1.1.4 true pipeline-stage-view 2.8 true pipeline-utility-steps 1.3.0 true plain-credentials 1.4 true publish-over-ssh 1.17 true pubsub-light 1.8 true resource-disposer 0.6 true role-strategy 2.5.0 true run-condition 1.0 true schedule-build 0.3.4 true scm-api 2.1.1 true script-security 1.27 true shared-workspace 1.0.2 true sqlplus-script-runner 1.0.6 true sse-gateway 1.15 true ssh-agent 1.15 true ssh-credentials 1.13 true ssh-slaves 1.17 true ssh2easy 1.4 true structs 1.7 true subversion 2.7.2 true thinBackup 1.9 true timestamper 1.8.8 true token-macro 2.1 true variant 1.1 true windows-slaves 1.3.1 true workflow-aggregator 2.5 true workflow-api 2.16 true workflow-basic-steps 2.5 true workflow-cps 2.33 true workflow-cps-global-lib 2.8 true workflow-durable-task-step 2.11 true workflow-job 2.11 true workflow-multibranch 2.15 true workflow-scm-step 2.4 true workflow-step-api 2.10 true workflow-support 2.14 true ws-cleanup 0.33 true