Rails: Wrong number of arguments (given 2, expected 1) MongoID - ruby-on-rails

Question

I'm trying to open my MongoDB models, however, I'm getting the following error:
MONGODB | xxx.xx.x.xxx:27017 | db.find | FAILED | wrong number of arguments (given 2, expected 1) | 0.013306s
My Mongo credentials are correct, and I can connect to the database's collections outside of Rails.
The first few lines of the error are:
Started GET "/admin/xsl_sheet" for xxx.xxx.xxx.xxx at 2020-03-03 13:49:54 UTC
Processing by RailsAdmin::MainController#index as HTML
Parameters: {"model_name"=>"xsl_sheet"}
(5.0ms) SELECT `companies`.`name` FROM `companies` WHERE `companies`.`id` = 4
CACHE (0.1ms) SELECT `companies`.`name` FROM `companies` WHERE `companies`.`id` = 4 [["id", "4"]]
CACHE (0.2ms) SELECT `companies`.`name` FROM `companies` WHERE `companies`.`id` = 4 [["id", "4"]]
MONGODB | xxx.xx.x.xxx:27017 | db.saslStart | STARTED | {}
MONGODB | xxx.xx.x.xxx:27017 | db.saslStart | SUCCEEDED | 0.007s
MONGODB | xxx.xx.x.xxx:27017 | db.saslContinue | STARTED | {}
MONGODB | xxx.xx.x.xxx:27017 | db.saslContinue | SUCCEEDED | 0.006s
MONGODB | xxx.xx.x.xxx:27017 | db.saslContinue | STARTED | {}
MONGODB | xxx.xx.x.xxx:27017 | db.saslContinue | SUCCEEDED | 0.006s
MONGODB | xxx.xx.x.xxx:27017 | db.find | STARTED | {"find"=>"TestCompanyNumber2_xsl_sheets", "filter"=>{"assetable_id"=>4}, "limit"=>1, "skip"=>0, "sort"=>{"_id"=>-1}, "projection"=>{"_id"=>1}}
MONGODB | xxx.xx.x.xxx:27017 | db.find | FAILED | wrong number of arguments (given 2, expected 1) | 0.013306s
Rendered /Project/app/views/rails_admin/main/index.html.haml within
layouts/rails_admin/application (349.7ms)
Rendered public/500.html (64.4ms)
wrong number of arguments (given 2, expected 1)
/GEMS/gems/bson-4.8.0-java/lib/bson/hash.rb:115:in `from_bson'
Edit:
Here is the code inside rails_admin.rb which (I believe) is in charge of pulling objects from MongoDB:
c.model XslSheet do
label Proc.new {"Xsl Sheet"}
navigation_label Proc.new {I18n.t('navigation.actions')}
weight 303
navigation_icon 'fa fa-file-excel-o'
list do
scopes [:applicationId]
field :data_file_name
field :updated_at
end
end

Answer 1

This is https://jira.mongodb.org/browse/RUBY-2146. Downgrade to bson 4.7.0 until 4.8.2 is released.
To help people answer your questions, include the versions of the software you are using (in this case, mongoid, mongo and bson versions are relevant), as well as the fact you are using JRuby.