Since recent update to editor, I have only syntax highlighting and autocompletion, but no error reporting/ref resolving

Spoofax Core 1.2.0.20141008-133430 org.strategoxt.imp.feature.group null
WebDSL Editor 1.2.9.201410092208 webdsl.editor.feature.feature.group null

java.lang.RuntimeException: Analysis failed:
Analyzing: basic/basic-assignment-view.app
Explicitly importing main file: weblab
Updating cache: /Users/elmer/git/weblab/.cache/+Users+elmer+git+weblab+weblab.app.sig
Updating cache: /Users/elmer/git/weblab/.cache/+Users+elmer+git+weblab+generated-question+generated-question-view.app.sig
rewriting failed, trace:
	editor_analyze_0_0
	editor_analyze_0_0
	editor_analyze_work_0_0
	in_typechecking_phase_1_0
	dr_scope_1_1
	get_main_import_0_0
	dr_scope_1_1
	try_1_0
	import_main_file_0_0
	try_1_0
	get_imports_0_0
	dr_scope_1_1
	editor_parse_webdsl_module_0_0
	open_import_sig_4_0
	dr_scope_1_1
	open_import_sig_cached_2_0
	read_import_0_1
	declare_globals_0_0
	filter_1_0
	get_imports_0_0
	dr_scope_1_1
	editor_parse_webdsl_module_0_0
	open_import_sig_4_0
	dr_scope_1_1
	open_import_sig_cached_2_0
	report_with_failure_0_1
	report_failure_0_2
	SRTS_EXT_fatal_err_0_2
	at org.strategoxt.imp.runtime.Environment.logException(Environment.java:257)
	at org.strategoxt.imp.runtime.services.StrategoObserver.update(StrategoObserver.java:407)
	at org.strategoxt.imp.runtime.services.StrategoObserverUpdateJob.analyze(StrategoObserverUpdateJob.java:30)
	at org.strategoxt.imp.runtime.services.StrategoAnalysisQueue$UpdateJob.run(StrategoAnalysisQueue.java:82)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)

org.spoofax.interpreter.core.InterpreterException: Exception during evaluation
	at org.spoofax.interpreter.core.Interpreter.evaluate(Interpreter.java:117)
	at org.spoofax.interpreter.core.Interpreter.invoke(Interpreter.java:82)
	at org.strategoxt.HybridInterpreter.invoke(HybridInterpreter.java:442)
	at org.strategoxt.imp.debug.core.str.launching.DebuggableHybridInterpreter.invoke(DebuggableHybridInterpreter.java:150)
	at org.strategoxt.imp.runtime.services.StrategoObserver.invoke(StrategoObserver.java:637)
	at org.strategoxt.imp.runtime.services.StrategoObserver.invokeSilent(StrategoObserver.java:695)
	at org.strategoxt.imp.runtime.services.StrategoObserver.update(StrategoObserver.java:399)
	at org.strategoxt.imp.runtime.services.StrategoObserverUpdateJob.analyze(StrategoObserverUpdateJob.java:30)
	at org.strategoxt.imp.runtime.services.StrategoAnalysisQueue$UpdateJob.run(StrategoAnalysisQueue.java:82)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
Caused by: org.spoofax.interpreter.core.InterpreterErrorExit: Internal error: with clause failed unexpectedly in 'open-import-sig-cached'
	("/Users/elmer/git/weblab/generated-question/generated-question-view.app","/Users/elmer/git/weblab/.cache/+Users+elmer+git+weblab+generated-question+generated-question-view.app.sig")
	at org.strategoxt.lang.InteropSDefT.evaluate(InteropSDefT.java:194)
	at org.strategoxt.lang.InteropSDefT.evaluate(InteropSDefT.java:183)
	at org.strategoxt.lang.InteropSDefT$StrategyBody.evaluate(InteropSDefT.java:245)
	at org.spoofax.interpreter.core.Interpreter.evaluate(Interpreter.java:109)
	... 9 more
Caused by: org.strategoxt.lang.StrategoErrorExit: Internal error: with clause failed unexpectedly in 'open-import-sig-cached'
	("/Users/elmer/git/weblab/generated-question/generated-question-view.app","/Users/elmer/git/weblab/.cache/+Users+elmer+git+weblab+generated-question+generated-question-view.app.sig")
	report_with_failure_0_1
	open_import_sig_cached_2_0
	dr_scope_1_1
	open_import_sig_4_0
	editor_parse_webdsl_module_0_0
	dr_scope_1_1
	get_imports_0_0
	filter_1_0
	declare_globals_0_0
	read_import_0_1
	open_import_sig_cached_2_0
	dr_scope_1_1
	open_import_sig_4_0
	editor_parse_webdsl_module_0_0
	dr_scope_1_1
	get_imports_0_0
	try_1_0
	import_main_file_0_0
	try_1_0
	dr_scope_1_1
	get_main_import_0_0
	dr_scope_1_1
	in_typechecking_phase_1_0
	editor_analyze_work_0_0
	editor_analyze_0_0
	editor_analyze_0_0
	at org.strategoxt.lang.SRTS_EXT_fatal_err_0_3.invoke(SRTS_EXT_fatal_err_0_3.java:28)
	at org.strategoxt.lang.compat.override.java_integration.SRTS_EXT_fatal_err_0_2.invoke(SRTS_EXT_fatal_err_0_2.java:33)
	at org.strategoxt.lang.compat.override.java_integration.report_failure_0_2_override.invoke(report_failure_0_2_override.java:27)
	at org.strategoxt.stratego_lib.report_with_failure_0_1.invoke(report_with_failure_0_1.java:32)
	at trans.open_import_sig_cached_2_0.invoke(open_import_sig_cached_2_0.java:110)
	at trans.lifted445.invoke(lifted445.java:146)
	at org.strategoxt.stratego_lib.dr_scope_1_1.invoke(dr_scope_1_1.java:31)
	at trans.open_import_sig_4_0.invoke(open_import_sig_4_0.java:87)
	at trans.editor_parse_webdsl_module_0_0.invoke(editor_parse_webdsl_module_0_0.java:65)
	at trans.lifted588.invoke(lifted588.java:40)
	at org.strategoxt.stratego_lib.dr_scope_1_1.invoke(dr_scope_1_1.java:31)
	at trans.get_imports_0_0.invoke(get_imports_0_0.java:53)
	at org.strategoxt.lang.SRTS_EXT_filter_1_0.filterIgnoreAnnos(SRTS_EXT_filter_1_0.java:83)
	at org.strategoxt.lang.SRTS_EXT_filter_1_0.invoke(SRTS_EXT_filter_1_0.java:34)
	at org.strategoxt.lang.compat.override.performance_tweaks.filter_1_0_override.invoke(filter_1_0_override.java:21)
	at trans.declare_globals_0_0.invoke(declare_globals_0_0.java:37)
	at trans.read_import_0_1.invoke(read_import_0_1.java:43)
	at trans.lifted364.invoke(lifted364.java:28)
	at trans.open_import_sig_cached_2_0.invoke(open_import_sig_cached_2_0.java:79)
	at trans.lifted445.invoke(lifted445.java:146)
	at org.strategoxt.stratego_lib.dr_scope_1_1.invoke(dr_scope_1_1.java:31)
	at trans.open_import_sig_4_0.invoke(open_import_sig_4_0.java:87)
	at trans.editor_parse_webdsl_module_0_0.invoke(editor_parse_webdsl_module_0_0.java:65)
	at trans.lifted588.invoke(lifted588.java:40)
	at org.strategoxt.stratego_lib.dr_scope_1_1.invoke(dr_scope_1_1.java:31)
	at trans.get_imports_0_0.invoke(get_imports_0_0.java:53)
	at org.strategoxt.stratego_lib.try_1_0.invoke(try_1_0.java:28)
	at trans.import_main_file_0_0.invoke(import_main_file_0_0.java:46)
	at trans.lifted587.invoke(lifted587.java:30)
	at org.strategoxt.stratego_lib.try_1_0.invoke(try_1_0.java:28)
	at trans.lifted586.invoke(lifted586.java:55)
	at org.strategoxt.stratego_lib.dr_scope_1_1.invoke(dr_scope_1_1.java:31)
	at trans.get_main_import_0_0.invoke(get_main_import_0_0.java:59)
	at trans.lifted564.invoke(lifted564.java:56)
	at org.webdsl.webdsl_generator.lifted836.invoke(lifted836.java:48)
	at org.strategoxt.stratego_lib.dr_scope_1_1.invoke(dr_scope_1_1.java:31)
	at org.webdsl.webdsl_generator.in_typechecking_phase_1_0.invoke(in_typechecking_phase_1_0.java:36)
	at trans.editor_analyze_work_0_0.invoke(editor_analyze_work_0_0.java:60)
	at trans.editor_analyze_0_0.invoke(editor_analyze_0_0.java:98)
	at org.strategoxt.lang.Strategy.invokeDynamic(Strategy.java:30)
	at org.strategoxt.lang.InteropSDefT.evaluate(InteropSDefT.java:192)
	... 12 more

Submitted by Elmer van Chastelet on 13 October 2014 at 15:39

Not sure what was causing this. After 2 hours of editing with failing analysis, all editor services resumed working correctly again.