war project failed to watch again

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 3.5, 3.6, 3.6.1
• Fix Version/s: Someday
• Component/s: Servers
• Labels: None

step:
1.create gradle workspace and init bundle to start
2.create war project in gradle workspace
3.watch war project after server started
4.stop watching
5.watch war project again

watch failed
console:
Failed to update bundle: D:\ce360360\liferay-developer-studio\eclipse-workspace\gw72\bundles\osgi\war\gwm.war with ID 2143. The bundle has been uninstalled