Magento 2.3.5: system.xml file upload allow types not working

system.xml <field id=”upload_image_id” translate=”label comment” type=”image” sortOrder=”50″ showInDefault=”1″ showInWebsite=”1″ showInStore=”1″> <label>Select Image</label> <backend_model>NameSpaceYourModuleModelConfigBackendImage</backend_model> <base_url type=”media” scope_info=”1″>yourfolder</base_url> </field> Image.php namespace NameSpaceYourModuleModelConfigBackend;…