diff --git a/CHANGELOG.md b/CHANGELOG.md
index 75ac65794..a405af01d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ Service release addressing all zero-day issues reported so far...
 - fix handling of relative path for models
 - fix simple live preview device mismatch
 - fix batch img2img
+- fix diffusers dpm++ 2m and 1s samplers
 - force second requirements check on startup
 - remove lyco, multiple_tqdm
 - enhance extension compatibility for exensions directly importing codeformers  
diff --git a/modules/sd_samplers_diffusers.py b/modules/sd_samplers_diffusers.py
index 6dfd2c73c..58a16c9b3 100644
--- a/modules/sd_samplers_diffusers.py
+++ b/modules/sd_samplers_diffusers.py
@@ -29,8 +29,8 @@ config = {
     'DDIM': { 'clip_sample': True, 'set_alpha_to_one': True, 'steps_offset': 0, 'clip_sample_range': 1.0, 'sample_max_value': 1.0, 'timestep_spacing': 'linspace', 'rescale_betas_zero_snr': False },
     'DDPM': { 'variance_type': "fixed_small", 'clip_sample': True, 'thresholding': False, 'clip_sample_range': 1.0, 'sample_max_value': 1.0, 'timestep_spacing': 'linspace'},
     'DEIS': { 'solver_order': 2, 'thresholding': False, 'sample_max_value': 1.0, 'algorithm_type': "deis", 'solver_type': "logrho", 'lower_order_final': True },
-    'DPM 1S++': { 'solver_order': 2, 'thresholding': False, 'sample_max_value': 1.0, 'algorithm_type': "dpmsolver++", 'solver_type': "midpoint", 'lower_order_final': True, 'use_karras_sigmas': False },
-    'DPM 2M++': { 'thresholding': False, 'sample_max_value': 1.0, 'algorithm_type': "dpmsolver++", 'solver_type': "midpoint", 'lower_order_final': True, 'use_karras_sigmas': False },
+    'DPM++ 1S': { 'solver_order': 2, 'thresholding': False, 'sample_max_value': 1.0, 'algorithm_type': "dpmsolver++", 'solver_type': "midpoint", 'lower_order_final': True, 'use_karras_sigmas': False },
+    'DPM++ 2M': { 'thresholding': False, 'sample_max_value': 1.0, 'algorithm_type': "dpmsolver++", 'solver_type': "midpoint", 'lower_order_final': True, 'use_karras_sigmas': False },
     'DPM SDE': { 'use_karras_sigmas': False },
     'Euler a': { },
     'Euler': { 'interpolation_type': "linear", 'use_karras_sigmas': False },
@@ -66,9 +66,10 @@ class DiffusionSampler:
             return
         self.name = name
         self.config = {}
-        self.config = config['All'].copy() # apply global defaults
         if not hasattr(model, 'scheduler'):
             return
+        for key, value in config.get('All', {}).items(): # apply global defaults
+            self.config[key] = value
         for key, value in config.get(name, {}).items(): # apply diffusers per-scheduler defaults
             self.config[key] = value
         if hasattr(model.scheduler, 'scheduler_config'): # find model defaults
@@ -102,5 +103,6 @@ class DiffusionSampler:
             self.config['beta_start'] = shared.opts.schedulers_beta_start
         if 'beta_end' in self.config and shared.opts.schedulers_beta_end > 0:
             self.config['beta_end'] = shared.opts.schedulers_beta_end
+        print('HERE9', self.config)
         self.sampler = constructor(**self.config)
         self.sampler.name = name
diff --git a/modules/ui_extra_networks.py b/modules/ui_extra_networks.py
index cc5101931..97cdd7390 100644
--- a/modules/ui_extra_networks.py
+++ b/modules/ui_extra_networks.py
@@ -23,9 +23,11 @@ allowed_dirs = []
 dir_cache = {} # key=path, value=(mtime, listdir(path))
 refresh_time = 0
 extra_pages = shared.extra_networks
+debug = shared.log.info if os.environ.get('SD_EN_DEBUG', None) is not None else lambda *args, **kwargs: None
 
 
 def listdir(path):
+    debug(f'EN list-dir: {path}')
     if not os.path.exists(path):
         return []
     if path in dir_cache and os.path.getmtime(path) == dir_cache[path][0]:
@@ -37,6 +39,7 @@ def listdir(path):
 
 def register_page(page):
     # registers extra networks page for the UI; recommend doing it in on_before_ui() callback for extensions
+    debug(f'EN register-page: {page}')
     shared.extra_networks.append(page)
     allowed_dirs.clear()
     for pg in shared.extra_networks:
@@ -165,6 +168,7 @@ class ExtraNetworksPage:
         return True
 
     def create_thumb(self):
+        debug(f'EN create-thumb: {self.name}')
         created = 0
         for f in self.missing_thumbs:
             if not os.path.exists(f):
@@ -197,6 +201,7 @@ class ExtraNetworksPage:
             self.missing_thumbs.clear()
 
     def create_items(self, tabname):
+        debug(f'EN create-items: {self.name}')
         if self.refresh_time is not None and self.refresh_time > refresh_time: # cached results
             return
         t0 = time.time()
@@ -213,6 +218,7 @@ class ExtraNetworksPage:
 
 
     def create_page(self, tabname, skip = False):
+        debug(f'EN create-page: {self.name}')
         if self.page_time > refresh_time: # cached page
             return self.html
         self_name_id = self.name.replace(" ", "_")
@@ -249,7 +255,8 @@ class ExtraNetworksPage:
         else:
             return ''
         shared.log.debug(f"Extra networks: page='{self.name}' items={len(self.items)} subdirs={len(subdirs)} tab={tabname} dirs={self.allowed_directories_for_previews()} time={self.list_time}s")
-        threading.Thread(target=self.create_thumb).start()
+        if len(self.missing_thumbs) > 0:
+            threading.Thread(target=self.create_thumb).start()
         return self.html
 
     def list_items(self):
@@ -394,6 +401,7 @@ class ExtraNetworksUi:
 
 
 def create_ui(container, button_parent, tabname, skip_indexing = False):
+    debug(f'EN create-ui: {tabname}')
     ui = ExtraNetworksUi()
     ui.tabname = tabname
     ui.pages = []