Solidworks 2020 bug quotation sketch

Good evening
We went from Slw 2019 to 2020 SP5 a week ago, from time to time on a sketch we can no longer put a dimension, only sketch constraints are offered  to us (tangency, collinearity..) this phenomenon happens on several stations and on all types of parts.
Another bug, the context menu of constraints in an assembly disappears suddenly without any bad handling since it also happens on several workstations with different assemblies.
Only a restart can get out of it!! We are starting to regret 2019 a little!!
Are there any known malfunctions from 2020? Thank you in advance for your feedback...